The 3 Worlds of Gulliver (1960)

Based on Jonathan Swift's famous Gulliver's Travels (1726) novel, the three worlds of the title refer to Gulliver's (Kerwin Mathews) own and just two others, Lilliput and Brobdingnag. If you've read the book, you'll know that it had more worlds thereafter, but the two chosen do at least keep the opposites theme that Swift's adventure relied heavily upon; likewise in their defining traits, with the Lilliputians being complicated and the Brobdingnagians naïve and simplistic. The themes of the novel are lessened but not excised and those that remain are integrated well enough, with Gulliver's observations criticising societal attitudes more often than they do specific individuals.
The things that might not be suitable for children have been altered, as has the ending, opting instead for an ambiguity that I wasn't particularly fond of.

2½ wrong rights out of 5