Casey Affleck has signed on to star in The F-Word for Fox Searchlight says  The project, written by Elan Mastai (Alone in the Dark) and to be directed by Alex Holdridge (In Search of a Midnight Kiss), revolves around a young man who falls for a young woman but
hides his attraction for her until she can admit to reciprocal
It’s based on the play, Cigars and Toothpaste by T.J. Dawe and Michael
Rinaldi.  And in case you were wondering, the f-word in this case is friendship.

I have to say, I hope this is just a one-off in the romantic comedy genre for Affleck, who, after Gone Baby Gone and The Assassination of Jesse James by the Coward Robert Ford has recently proven that he can bring it in the big time roles.  Affleck also recently starred in The Killer Inside Me and will be seen in Ridley Scott’s The Kind One, which is set in the 1930s Los Angeles and follows Danny Landon, an amnesiac who
works for a violent mobster (a.k.a. “The Kind One”), while he falls in
love with this man’s girlfriend (via IMDB). 
He also has Another Bullshit Night in Suck City in development, which bears investigation from the title alone.