Well it depends on what Game it is if its like Harry Potter then there good but if you made Medal of Honour into a movie it probabaly wouldn't be much good!
most of them suck, especially the ones that were already animated kinda like Monster house
my ratings spiderman 1 - ok because you can be green goblin with cheat
spiderman 2 - best can do anything you want
spiderman 3 - not very good, you haveto change between dark and light at the right time and in the end you have to do so much stuff for dark its no fun, many glitches
iron man - not fun, difficult controls, short dumb storyline
hulk(gamecube the one 4 years ago) - good many cheats and freeroam was awesome
hulk(newergame) - looks like 4 years ago with little better graphics
harry potter - not too bad not too good, i do like the quidditch one, some freeroam but not much all i can think of