Factual error: When Mike is leaving to join the Marines he is in full uniform. Uniforms are not issued to new recruits until after they are processed in. They arrive at Camp Pendleton in civvies.
Yours, Mine and Ours (1968)
Ending / spoiler
Directed by: Melville Shavelson
Starring: Henry Fonda, Tim Matheson, Lucille Ball, Van Johnson, Tom Bosley, Louise Troy
Helen becomes pregnant with and gives birth to a nineteenth child. Frank and Helen are finally able to adopt each other's children (with cheers from all involved) and Mike goes to Camp Pendleton.
Jacob Daniel
More mistakes in Yours, Mine and Ours
Frank Beardsley: I don't quite understand. Am I being stupid?
Helen North: No, you're being a man. Which is sometimes the same thing.
Trivia: Tim Matheson (Mike) and Jennifer Leak (Colleen) later married after meeting on the set of the movie.