It really seems like it should work, doesn't it? You'd think that movies like Harry Potter and Iron Man should make great games, right? There's plenty of room for action, creative game mechanics, even RPG elements... It's almost like the idea is gift wrapped for the developer.
Regardless, time and time again, taking a movie and making it into a video game instead becomes an exercise in futility.
Take Harry Potter, for instance. A quick look at Metacritic tells most of the story. The movie Harry Potter and the Deathly Hallows: Part 2 has received an aggregate score of 87, an impressive showing. The game of the same name? 47. That's not even in the ballpark.
Iron Man was also recognized as a decent movie by most standards. But the...