How original are Hollywood movies?

8 June '15 10 Comments on How original are Hollywood movies?

How original are Hollywood moviesA while ago I looked at the source of Hollywood films, to see what existing material they were adapted from.  It’s a topic I continue to get questions about; specifically about the number of sequels, spinoffs and reboots in Hollywood today.  Therefore, I’ve decided to take a more detailed look at the lineage of the top grossing Hollywood films.

Today’s research looks at the 100 highest grossing films at the US box office in each year between 2005 and 2014 (1,000 films in total). In summary…

  • 39% of top movies released 2005-14 were truly original, i.e. not an adaptation, sequel, spin-off, remake, or other such derivative work
  • The biggest ten movies of each year are rarely truly original (15% of the time, 2005-14).
  • In both 2013 and 2014, none of top ten grossing movies were original.
  • The highest grossing, truly original movies of the past decade were (in order) Avatar, Up, Cars, Inception, The Hangover and Gravity.
  • The average budget for films based on existing material was $70.8 million, whereas ‘truly original’ films had an average budget of just $46.4 million.
  • The most common source for adaptation is a fictional novel or short story (19.7% of top movies).
  • Almost 70% of romantic comedies are original.

What does “original” mean?

How original are Hollywood movies - Fast and Furious 7Most film awards make a distinction between adapted screenplays and original screenplays, including the Oscars.   For the purposes of this research I have classified a film as “truly original” if it…

  • Was not adapted from an existing source; and
  • Wasn’t a sequel, prequel or spin-off of an existing movie.

I created this distinction as the standard Hollywood definition of an “original screenplay” was too broad to cover the topic I am looking at today.  For example, by Hollywood standards, all of the following films would be classed as ‘original screenplays’: Fast and Furious 7, Saw IVFinal Destination 5A Good Day to Die HardThe Expendables 3, Rio 2 and Evan Almighty.

Sadly, my definition cannot take into account the true originality of the creative content. For example, the highest grossing ‘truly original’ film on my list is Avatar, which has often been accused of being an amalgam of existing tropes.  The Boston Globe reviewer Ty Burr elegantly pointed out in his review of the film “In terms of plot, then, this is “Dances With Wolves.’’ Seriously: It’s the same movie, re-imagined as a speculative-anthropological freak-out“.

Of the 1,000 highest grossing films at the US box office released 2005-14 (top 100 of each year), 38.5% of movies were ‘truly original’, i.e. not an adaptation, sequel, spin-off, remake, or other such derivative work.

How original are Hollywood movies at the US box office 2005-14

Trouble at the top

I think many cinema-goers would be surprised to hear that over a third of Hollywood films are original, as shown above.  Cynicism aside, this is because not all movies are created or marketed equally.  The biggest ten movies of each year are rarely ‘truly original’ (15% of the time, 2005-14).

How original are the top 10 Hollywood movies 2005-14

When we breakdown the 2014 figures we can see that not one of the top ten grossing films were ‘truly original’.  This number grows to 13.3% of the films which placed 11th or 25th on the annual box office chart for US gross.  However, on the lower half of the annual 100 (i.e. films placed between 51st and 100th), over half were ‘truly original’.

Originality of top grossing Hollywood movies 2014

It’s what we’re paying for

So far we have been looking purely at the number of films released.  When we turn to look at the amount of money grossed in cinemas then the difference is even starker.  In 2005, 34.5% of the money spent in US cinemas on the top 100 films went to ‘truly original’ films but by 2014 that had dropped to 19.2%.

This race towards derivative films has been happening at all levels, but nowhere faster than in the top tier of grossing films.  In 2005, almost a quarter of the money spent on the top 10 grossing films went to ‘truly original’ movies.  In both 2011 and 2012, this had dropped to just 7.8% of the box office gross and in both 2013 and 2014 it was 0%.

% of US box office gross which when to truly original movies

Bigger ≠ Better

Between 2005 and 2014, the average budget for the top 100 grossing films based on existing material was $70.8 million, whereas ‘truly original’ films had an average budget of just $46.4 million.

Total budgets of top 100 movies at US box office 2005-14

So what types of material are movies adapted from?

If it has a fan base, almost anything could become a movie.  I think most people expect movies to come from best-selling books but few of us ride a rollercoaster, use a website or play a boardgame and think “There could be a movie in this”. Below is a list of sources of common original materials, including the best performing title for each source between 1995 and 2015 (the titles were selected for being the highest grossing film from each source at the US box office when adjusted for inflation, as of 8th June 2015) …

The most common source for adaptation is a fictional novel or short story, accounting for 19.7% of the top 1,000 movies of the past decade.

Script source for top grossing Hollywood movies 2005-14

Adapt or try to write something original

Some genres are more likely to be ‘truly original’ than others.  Almost 70% of romantic comedies are not adaptations or a sequel etc to another movie.  (Whether or not they’re creatively derivative is not for today’s article!)  Also, not one of the top 1,000 highest grossing films of the past decade was a romantic comedy based on true life events.  It seems that if we want to hear a story of true love then we need to make it up.

% of top grossing films which were truly orginal

Why is this happening?

There are always many reasons why one movie gets made over another, however the trend towards increased adaptations, remakes and sequels is undeniable and so there must be a reason (or reasons) behind it.

My theory is that the environment for Hollywood movies is getting riskier and so studio execs are even more risk averse than ever before.  Making and promoting a Hollywood movie is a massively expensive endeavour and you won’t really know how it might perform at the box office until a few weeks before release.  That’s a few years after you’ve greenlit the film and it has been tying up your money and resources.  In the past few years there have been an increasing number of huge-budget failures, making Hollywood execs even more jumpy.

So how do you reduce the perceived risk of a project?  You base it on something which has already proved popular and which has a ready-made fan base.  The most straightforward version of this is knocking out a sequel as soon as possible after a film performs well in cinemas.  To a lesser extent, adapting a pre-existing story into a movie provides many advantages for the risk-averse Hollywood Exec, including…

  • You know who your audience will be.  By picking up existing material then you are able to assess the commercial potential before you shoot a single frame.  By contrast, a ‘truly original’ screenplay won’t reveal its audience appeal until the film is about to hit cinemas and the studios can measure the ‘buzz’.
  • The story, characters and world have already been developed.  This means you can take advantage of the years of development and honing that the original creators have already sunk into the idea.
  • There is a pre-existing fan base.  Sure these guys will buy tickets, but they alone won’t be enough to make your movie a success. They will, however, talk about your movie online and help build ‘buzz’.  Inevitably there will be a tension between what this small group of loyal fans want to see transferred to the big screen and what the bigger, broader cinema-going audience want from a popcorn movie but this is a minor concern for Hollywood execs (and there is an argument that they should ignore the hardcore fans to a greater extent than they already do).

Notes on ‘How original are Hollywood movies?’

The data for today’s research came from The Numbers, Box Office Mojo, IMDb and Wikipedia.


Next week I’m going to look at the proliferation of sequels, remakes and reboots in Hollywood.  See it as a sequel to the smash hit article you’ve just finished reading. I am already looking into merchandising rights for the graphs…



  1. Thank you very much, your statistics are so helpful. With all the comic book adaptations you wonder at what point they will run out of good ideas to adapt, I feel it’s a bit of a craze for now but will disappear in a few years, Transformers 5 is happening.

  2. Avatar, not just existing tropes, it’s wholesale lifting of narrative. It’s essentially a remake of the animated picture Fern Gully and/or the story of Pocahontas. Cameron similarly “borrowed” much of the same structure and even character types for The Abyss from John Carpenter’s The Thing. It’s just “Who Goes There?” underwater instead of in the Arctic like the Carpenter picture or in space like Ridley Scott’s Alien. He did wholesale lifts from La Jettee for The Terminator. His stories are likely as “unoriginal” as Tarrantino’s but the difference is Cameron pretends like he’s a creative genius where Tarrantino wears his influences on his sleeve.

    Likewise, Cars is an animated retelling of the Michael J. Fox picture Doc Hollywood.

    1. Ridley Scott’s ‘Alien’ is very similar to Mario Bava’s ‘Planet of the Vampires’, even down to the design of the crashed spaceship on the planet surface.

      Tarantino lifted the plot for ‘Reservoir Dogs’ wholesale from ‘City on Fire’. He didn’t mention the movie at the time, and initially denied having seen the film when ‘Film Threat’ magazine discovered the similarities.

      ‘Terminator’ is very similar to ‘Solider’, an episode of ‘The Outer Limits’ written by Harlan Ellison (who sued, which is why he receives a mention in the end credits of the film).

  3. I think nothing is original or duplicate, if you are providing entertainment to all then anything can be done, unless you are not stealing someone’s work. Hollywood is running out of new ideas but still there are many great films available to watch.

  4. I did a check for your research result that “In both 2013 and 2014, none of top ten grossing movies were original.”

    If you are considering world wide box office, we have one original movie for both years:
    2013 has Gravity #8 ($723.2M)
    2014 has Interstellar #10 ($677.5M)

    Both have original screenplays.

    Source: boxofficemojo

  5. Thank you for this insightful post, Stephen! Can I ask how you collected data? Did you use computational tools to scrap the webpages, or did you hand-collected all these data and matched them across multiple sources? I’m interested in film adaptation patterns as well and hope to build a data set to test my ideas. I appreciate any advice from you on data collection techniques and sampling strategies. Thank you in advance!

    1. Hi Amy

      I can’t remember off-hand for this piece of research as it was four years ago. Generally, I use a mix of methods, depending on the challenges. Large datasets can’t be built by hand but if you just automate everything then you can fail to spot errors and you don’t really get a sense of the films involved.

  6. The reason the American film industry makes few original films nowadays is because they want to prefer releasing low-risk films that make plenty of money.

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