Welcome to Marwen is a 2018 American drama film directed by Robert Zemeckis, who co-wrote the script with Caroline Thompson. It is inspired by Jeff Malmberg's 2010 documentary Marwencol. The film stars Steve Carell, Leslie Mann, Diane Kruger, Merritt Wever, Janelle Monáe, Eiza González, Gwendoline Christie, Leslie Zemeckis, Siobhan Williams and Neil Jackson. It tells the true story of Mark Hogancamp, a man struggling with PTSD who, after being physically assaulted, creates a fictional village to ease his trauma.

Welcome to Marwen was released by Universal Pictures on December 21, 2018. Critics praised the animated segments and performances, particularly Carell's, but criticized the inconsistent tone and screenplay. The film grossed only $13.1 million worldwide, becoming a box-office bomb.