I Am Sam (2001)

Cast: Sean Penn, Michelle Pfeiffer, Dianne Wiest, Dakota Fanning, Richard Schiff, Loretta Devine, Marin Hinkle, Laura Dern, Brad Silverman, Joseph Rosenberg

Sam, a neurodivergent man, has a daughter with a homeless woman who abandons them when they leave the hospital, leaving Sam to raise Lucy on his own. But as Lucy grows up, Sam's limitations as a paren…