Halo even though they already made a movie for it and zombie land is sortov like l4d and l4d2 and they already made movies for naruto so... FF13 or PSU(phantasy star universe)
In response to Half Life, Gordon's AUX in the suit is FUBAR, Forcing him to be silent the entire movie. Yeah, It makes no sense, but aparently in the future, We talk out of our belly buttons. I would love to see either Minesweeper or Paper Boy.
I am thinking radicaly here : Mario.... no? I knew it would sound silly. So how about GTA....no too many gangSTAR movies around.... Prof. Layton... no, no..... I got it how about, drum roll please...... Army of Two