Where's Poppa? is a 1970 American black comedy film based on the 1970 novel by Robert Klane and starring George Segal, Ruth Gordon, Ron Leibman, and Trish Van Devere. The plot revolves around the troubled relationship between a lawyer (Segal) and his senile mother (Gordon), who keeps interfering with his love life. The film was directed by Carl Reiner, whose son Rob Reiner had a role in an early performance. Others in the cast include Paul Sorvino (in his film debut), Rae Allen, Vincent Gardenia and Garrett Morris. The film was re-released in 1975, under the title Going Ape, and maintains a cult following.