Ya'll are kidding, right?
There is only one story out there that just screams movie. The author's cinematic style, the multi-layered texture of the prose, the whip like pacing, the intricate and intelligent plot, the smart dialogue that already reads like a screenplay, characters that are three dimensional, complex and complicated - so real they practically jump off the page at you - a setting that is urban and rife with depth and possiblities, only one that has received comment after comment after comment that how much like a movie it feels, one of the best fics in the entire fandom and nobody has mentioned it yet?
Unbelievable.
If I had to choose one fanfiction story to be filmed? No question whatsoever...
"Tainted Evidence" by Queen B.