Josh is a young boy who feels neglected and misunderstood at home. Preparing to run away, he chances across an old diary once kept by his grandfather. Leafing through the yellowed pages, Josh discovers that Grandpa went through many of the same childhood travails that he is enduring at that moment. Armed with a renewed understanding of and appreciation for his elders, Josh decides to stick around for a while and see how things develop.
Is When I Grow Up on Netflix? Unfortunately the movie When I Grow Up is not yet available on Netflix.
| Directing | Michael Kanin | Director |
| Camera | Ernest Laszlo | Director of Photography |
| Production | Jack Broder | Associate Producer |
| Production | Sam Spiegel | Producer |
| Sound | Jerome Moross | Music |
| Editing | Edward Mann | Editor |
| Editing | Bruce Schoengarth | Editor |
| Art | Nicolai Remisoff | Art Direction |
| Art | Edward R. Robinson | Set Decoration |
| Costume & Make-Up | Norma Koch | Costume Design |
| Costume & Make-Up | Sally Berkeley | Hair Setup |
| Costume & Make-Up | Ted Larsen | Makeup Artist |
| Directing | Jack R. Berne | Assistant Director |
| Sound | Ben Winkler | Sound Mixer |
| Sound | George Fields | Musician |
| Writing | Irving Friedman | Musical |
| Directing | Ross Hunter | Script Supervisor |
| Crew | Samuel Rheiner | Production Intern |