Movie about a guy wrongfully imprisoned who gets beaten, raped, becomes a librarian, cooks some books and does some taxes, gets thrown in solitary confinement and ends with a scene where he walks back to his cell, depressed and about to hang himself.

You should cut Red back in at the end, happily walking on a beach, just to twist the knife a little more.

I'd just go with "The Shawshank Damnation". if you're on a windows PC try Lightworks (and then tell me if you like it cause I've never tried it). It's open source and thus free. http://www.lightworksbeta.com/