The 3 Worlds of Gulliver - 1960

Doctor Gulliver is poor, therefore nothing - not really his fiancée that is magical Elisabeth - keeps him. He has washed off the ship and ends up in an island, which is inhibitated by men and women that are very small, but in a although he signs on to a ship to India. After he was able to convince them he's harmless and can be accepted as one of the citizens, their king wants to make use of him. Compared to them, even Gulliver can be actually a gnome.