This is a series.
An orphaned brontosaurus teams up with other young dinosaurs in order to reunite with their families in a valley.
Its executive producers are Steven Spielberg, George Lucas, Kathleen Kennedy, and Frank Marshall. The film stars the voices of Judith Barsi (posthumously), Burke Byrnes, Gabriel Damon, Bill Erwin, Pat Hingle, Candace Hutson, Will Ryan, and Helen Shaver.