Luminous Motion (1998)

Director: Bette Gordon
Cast: Conn Horgan, Deborah Kara Unger, Eric Lloyd, James Berland, Jamey Sheridan, Patrick Fitzgerald, Paz de la Huerta, Terry Kinney

Synopsis:

A mom and her 10-year-old son motor around the country as she makes ends meet by turning tricks until her car breaks down. She then temporarily takes up with a hardware store owner until she gets her own place. Then the kid’s father shows up to try to take the two over.