Paul Rudd has signed on to follow-up his role in Marvel's Ant-Man with the drama The Revised Fundamentals of Caregiving. The project is an adaptation of Jonathan Evison's 2012 bestselling novel of the same name. Rob Burnett, a longtime executive producer on CBS' Late Show with David Letterman, is directing from his own adapted screenplay.

The story centers on Ben Benjamin (Paul Rudd), who forms a bond with a young boy stricken with Duchenne Muscular Dystrophy. They both begin to push each other to get their own lives back on track in this inspirational drama about two broken individuals coming to terms with their difficult lives. The role of the young boy, a 19-year-old boy named Trevor in the original book, has not been cast at this time.

Donna Gigliotti (Silver Linings Playbook) is producing alongside James Spies (Constantine). Levantine Productions and David Letterman's production company Worldwide Pants will also produce, with financing coming from a private group of investors lead by Levantine Films. Production is scheduled to begin January 22 in Atlanta, the same city where Paul Rudd shot Ant-Man last year, and Anchorman 2: The Legend Continues the year before that.