Coming soon, to a theater near you. And then coming very quickly after that to a Redbox kiosk in a grocery store near you. And then immediately disappearing from our memories until Cracked publishes an article called "Sequels to Great Movies You Can't Believe They Actually Made" sometime in 2018:

Directed by Martin Guigui (from a script co-written with Rustam Branaman), Raging Bull II takes its inspiration from real life pugilist LaMotta's book, and no — Scorsese isn't involved. As if. Filming is now in progress in Los Angeles, with an interesting supporting cast that includes Joe Mantegna, Tom Sizemore, Penelope Ann Miller, Natasha Henstridge, Alicia Witt, Ray Wise, Harry Hamlin, Bill Bellamy and James Russo, though cast member Juliet Landau, Tweeting a photo of herself in costume as a starlet who has an affair with LaMotta, described many of theirs as cameo appearances.

It's a sequel and a prequel to Raging Bull, which at least shows a commendable sense of economy on the part of the filmmakers.