In Order for a video game movie to be made, the screenplay writers, the directors, distributing company and Producers must take a 20 question quiz, all the questions are different, so no two tests are really the same or in any particular order (I mean, eventually you run the issues of having to use the same question twice, that's fine, but it's not something you can really cheat on).
Of the 20 questions, you can only have Seven (7) questions wrong. If you fail beyond that number, you can still direct/write/produce/distribute the project, but you must play the chosen video game, take notes, then come back to take another test. You have to pass the test and beat the game before you can send it out.
If you plan to implement a new idea that wasn't in the original video game, you must write a small letter or essay to the game company and tell them why you HAVE to make this choice. If the reason is approved, go at it. If not approved, keep making the movie as it was intended until you either feel a better idea come along or you finish the movie.
Guaranteed, if you have to make the writer and director, or even the producer no less had to do tests on the games they make, I bet you they won't make another crappy Video Game Movie again.