Steve Carell Struggles With PTSD in New 'Welcome to Marwen' Trailer

The film also stars Leslie Mann, Diane Kruger, Merritt Wever, Gwendoline Christie, Eiza Gonzalez and Janelle Monae.

Universal on Wednesday released the second trailer for Welcome to Marwen.

The film comes from Academy Award-winning director Robert Zemeckis and is based on a true story. Steve Carell stars as Mark Hogancamp, who is attacked by a group of Nazis. After barely surviving the devastating attack, Hogancamp remains traumatized and struggles to carry on his normal life as a World War II illustrator.

To deal with his PTSD, Hogancamp creates a fantasy world where dolls become heroes. The dolls in the fictional world called "Marwen" are a testament to the women in his life, including his new neighbor Nicol (Leslie Mann), his friend and toy shop employee Roberta (Merritt Wever), his friend from rehab Julie (Janelle Monae), bar employee Caralala (Eliza Gonzalez) and his caretaker Anna (Gwendoline Christie).

The latest trailer gives a deeper look as Hogancamp's physical struggle to recover from the attack. "I got beaten within an inch of my life for no reason," he says as it becomes clear that he depends on medication and attends rehab to learn how to walk with a prosthetic leg.

"They kicked every memory I ever had out of my head," says Hogancamp as he looks through a scrapbook. "Everything from before the attack is gone, so my dolls have to explain the story."

Powerful female dolls strut down the street as Hogancamp explains that they are responsible for protecting the world of Marwen. A number of intense scenes, including the dolls shooting assault weapons and Hogancamp struggling emotionally and physically, are shown to explain parallels between the real and fictional worlds.

In one part of the preview, Hogancamp stands in court and faces his attackers. "The life I once had was taken away from me, but I'm still here," he says. "I have hope and I have my town and I have my friends and I'll be okay." Throughout his testimony, shots of Hogancamp's life in Marwen and with his friends show some of the highlights, as well as struggles, of his new life. "Anything is possible in Marwen," he concludes.

Welcome to Marwen is set to hit theaters Dec. 21.