The Fundamentals of Caring is a heartfelt comedy-drama film that stars Paul Rudd as Ben, a retired writer who becomes a caregiver for a teenager with muscular dystrophy named Trevor, played by Craig Roberts. The movie follows Ben and Trevor as they embark on a road trip together, discovering the true meaning of friendship and the importance of living life to the fullest. With its mix of humor and emotional depth, The Fundamentals of Caring is a touching and uplifting film that showcases Paul Rudd's versatility as an actor.