Step one: Pick the IP
Step two: Pick your director
Exs: Michael Bay
Christopher Nolan
Neil Blomkamp (district 9)
Etc.
Step three: Pick your actors
Anymore info:
I'll start-
Halo: the beginning
Christopher Nolan
Jodie foster as cortana, Denzel Washington as sergeant johnston, Matt Damon in there somewhere.
Info: a gritty and dark retelling of the training of 117 and his squad, first contact, all the way through the fall of reach