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 in the lead role, Leslie Mann, Diane Kruger, Merritt Wever, Janelle Monáe, Eiza González, Gwendoline Christie, Leslie Zemeckis, Siobhan Williams and Neil Jackson, and follows the true story of Mark Hogancamp, a man struggling with PTSD who, after being physically assaulted, creates a fictional village to ease his trauma.