Most movie buffs agree, The Room was one of the worst movies ever made...if not the worst.
The acting, directing, writing...everything is terrible about it. It has become a cult classic because it's so terrible. Anyway, years after the movie was released, one of the actors in the film, wrote a behind-the-scenes book on the making of the movie called The Disaster Artist. That book has now become a film starring James Franco, Dave Franco, and Seth Rogan.
If you've ever seen The Room or clips from the movie, I think you'll agree that James Franco does a pretty spot on job.