I can imagine it now. The writers try to tell the whole story of Solid Snake and everything he has gotten up to using the games as source material...
It ends up being 4 days long and still nobody really understands what happened - all anyone really remembers is MASSIVE MECHS FIGHTING! ALSO TITS!
...because of the aforementioned mechs and women wearing inappropriate clothing for their situation it makes MILLIONS!
Proverbial Jon said:
Why don't they just take the cutscenes from all the games, play them back to back and voila! Instant Metal Gear Solid movie! It's already feature length!
Apparently there's and edition of MGS3 that came with a feature length film where all the cutscenes were edited together into a 3 and a half hour movie.