A little topic inspired by what Rodarian did.
What do you think of it when it's done the other way around? A game becomes a movie?
I think it can work if it's done right, though I haven't seen that many - I thought Final Fantasy: TSW was a cool film, but it didn't scream out Final Fantasy to me, aside from a few potential references (Hein and Sid are totally Hyne and Cid), and before anyone asks, yes, I have seen Street Fighter: The Movie - in fact I have it on VHS.
I do like it a bit, but the main flaw of it is that whoever made it, only glanced at the games, and just made a load of stuff up (one good guy in the game is a bad guy in the film, two characters act and look completly different to how you'd expect them to act, on character is the same person as another even though he's not.) It's a good film - if you pretend it's not based on Street Fighter, which defeats the object. Sorry guys...
I saw the Mortal Kombat film, and I thought that did better - I don't know how close it was to the game because I don't own any MK games (yet...) but as a film it was entertaining, and one section was so obviously based on a stage in the game (I have never played one, but I could tell - it was obvious!)
Now, do Pokemon movies count or not? (think carefully before you answer) either way, I liked most of them.