Somehow they took an amazing game, combined it with a dumb premise and made a great movie.
Its as close to the source as we are gonna get and frankly as a old MH fan I didn't really see any failure to respect the source, other than *mild spoilers ahead* the weird race of ancients who could dimension hop plot but even that made sense in the movie enough I couldn't care less.
Seriously worth the watch, fan of the game or not its a enjoyable ride. But if your a fan you'll be grinning ear to ear the whole time.
My favorite part, is the spit roasting scene. So much nostalgia.