Won Ton Ton: The Dog Who Saved Hollywood (1976)

Won Ton Ton: The Dog Who Saved Hollywood
Comedy
A would-be filmmaker and actress shake up the industry with a trick dog who gets discovered by a studio bus driver in the 1920s.
Starring
Bruce Dern, Madeline Kahn, Art Carney, Phil Silvers, Teri Garr, Ron Leibman, Sterling Holloway, Virginia Mayo, Henny Youngman, Ethel Merman
Directed By
Michael Winner