who is the disaster artist based on?
<answer> The Disaster Artist is based on Greg Sestero's non-fiction book of the same name. <context> The Disaster Artist (film) The Disaster Artist is a 2017 American biographical comedy-drama film starring, directed and produced by James Franco. Based on Greg Sestero's non-fiction book of the same name, the film chronicles the making of Tommy Wiseau's 2003 cult film The Room.