Video Games based on movies

Why are movie games so bad. and what are the good ones? 

Why are movie games so bad. and what are the good ones? 

king kong was pretty good, but i haven't played any others.

Riddick is supposed to be good, but the best one by far I think is the old Bladerunner adventure game. 
 
The reason video games based on movies suck is because they're mostly cash ins made on a budget and a time limit. They often don't need to be good to sell. They're rarely made because there is something about a movie that would be worthwhile as a game.

Did everyone forget "Doom?" Ohhhh so bad!

" Did everyone forget "Doom?" Ohhhh so bad! "

=suck. 
 
Anyway, a semi-good one is Riddick, but that's not really based directly on the film (kind of how Batman:Arkham  Asylum is based in the universe, but not with the storyline). 

The Wolverine game that was tied to the Wolverine: Origins movie is pretty alright.

King Kong, Goldeneye, Spiderman series, Mission Impossible.

All great games.

I remember the console Lord of the Rings games being decent pre-God of War brawlers, whereas the GBA ones were basically Diablo clones. Either way, pretty alright.

" I remember the console Lord of the Rings games being decent pre-God of War brawlers, whereas the GBA ones were basically Diablo clones. Either way, pretty alright. "

Because they are rushed to come out alongside the movie and hence have very little time in development. 
 
Then, there are the gems like Clash of the Titans, which miss the movie's release date and yet can turn out to be a spectacular piece of crap.

" Because they are rushed to come out alongside the movie and hence have very little time in development."