The new film "Max Payne" is based on the video game by the same name. But you cannot tell this from the TV commercials. Movie based on books have trailers that say "Based on the best selling novel!" But advertising for movies based on video games make no mention of what the movie is based on. Why? Because these movies usually receive very poor reviews. Video games apparently do not translate well to the big screen.
They wouldn't make movies like this unless people kept buying tickets for them. These audiences can be divided into two groups: Unsuspecting moviegoers who don't know the film is based on a game, and idiots. I can reduce the numbers in the first group by making people aware of the problem, by listing new movies based on games so to warn people away. Public education is key.