The Disaster Artist is a 2017 biographical comedy-drama film directed by and starring James Franco. Based on Greg Sestero's non-fiction book of the same name, the film chronicles the making of the 2003 cult film The Room, widely considered one of the worst films ever
From Wikipedia
The Disaster Artist: My Life Inside The Room, the Greatest Bad Movie Ever Made is a 2013 non-fiction book written by Greg Sestero and Tom Bissell, in which the former details the troubled development and production of the panned 2003 cult romantic drama The Room, his own struggles as a young actor, and his relationship with The Room director Tommy Wiseau.