An eccentric millionaire and his grandchildren are embroiled in the plights of some forest gnomes who are searching for the rest of their tribe. While helping them, the millionaire is suspected of being crazy because he's seeing gnomes! He's committed, and the niece and nephew and the gnomes have to find him and free him.
| Directing | Robert Stevenson | Director |
| Camera | Edward Colman | Director of Photography |
| Art | Carroll Clark | Art Direction |
| Art | William H. Tuntke | Art Direction |
| Art | Emile Kuri | Set Decoration |
| Art | Hal Gausman | Set Decoration |
| Visual Effects | Peter Ellenshaw | Matte Painter |
| Crew | Eustace Lycett | Special Effects |
| Crew | Robert A. Mattey | Special Effects |
| Sound | Robert O. Cook | Sound Supervisor |
| Sound | Dean Thomas | Sound Mixer |
| Costume & Make-Up | Bill Thomas | Costume Design |
| Costume & Make-Up | Chuck Keehne | Costumer |
| Costume & Make-Up | Neva Rames | Costumer |
| Costume & Make-Up | La Rue Matheron | Hairstylist |
| Costume & Make-Up | Pat McNalley | Makeup Artist |
| Sound | Evelyn Kennedy | Music Editor |
| Editing | Norman R. Palmer | Editor |
| Directing | Arthur J. Vitarelli | Second Unit Director |
| Production | Joseph L. McEveety | Unit Manager |
| Directing | Paul Cameron | Assistant Director |
| Sound | Buddy Baker | Original Music Composer |
| Sound | Wayne Robinson | Orchestrator |
| Sound | Robert B. Sherman | Songs |
| Sound | Richard M. Sherman | Songs |
| Writing | Ellis Kadison | Screenplay |
| Writing | Upton Sinclair | Novel |
| Production | James Algar | Co-Producer |
