That is the word on the street I guess. Originally Eddie Murphy was attached, but I think Wayans might actually be the better choice. Murphy as one of the highest grossing film actors of all time would be hard to disassociate from Richard Pryor in a film like this. I’m still not sure I like Marlon Wayans either, but he seems a better overall choice than Murphy.
From Entertainment Weekly:
While Wayans is primarily known for his comedic roles in Wayans Bros.’ movies such as Dance Flick and White Chicks, he received critical acclaim for his dramatic turn in 1999’s Requiem for a Dream. Sources tell EW.com that Wayans fought for the role, blowing the producers away with a 13- min screen test where he “transforms into Pryor.” The movie depicts Pryor’s controversial brand of comedy and his battle with drugs and is currently budgeted at $20 million. Chris Rock, Pryor’s widow Jennifer Lee Pryor and Mark Gordon are also lined up to produce. Producers are still working out the terms of Wayans’ deal, and other major aspects of the overall project have not been finalized. Sony did not respond to requests for comment.