Gulliver's Travels....I generally quibble over movies-based-on-books which have little or nothing to do with the book.
But though the plot has been terribly altered, the essential basis of Gulliver's adventure on Lilliput remains: it's about a land of small-minded silly people fighting a war over an insignificant difference. Perhaps a touch preachy (especially during Gulliver's arrogant scolding at the end) but it's a story that speaks out in praise of compromise, which is rare enough.
The film is a bit dated, but I feel it has weathered the passage of time far better than Snow White, its contemporary. (It's a sad loss to the world that Fleischer Studios died.) Scenes of characters dancing the jitterbug, and takeoffs on old vaudeville personalities and clichés give it a feel that can only be described as classic.
On the other hand, Gabby's tedious recital-in-rhyme about a whale is the sort of pointless movie scene I'm sure nobody misses, and a few other scenes which might have been considered witty once are now only dull. The binding-up-Gullver scene feels like it takes up a fourth of the movie! And the Prince and Princess are so entirely...well the only perfect word that comes to mind is British--wet. No personality, totally passive, soppy and nauseating. The princess is particularly bland, but since she's pretty much the only female in the movie, no wonder the prince wants her. (Oh, and the Prince sings in baritone but speaks in treble. ) )
The music of Gulliver is excellent--Faithful/Forever is a sweet tune, and there is barely a song in the film which isn't delightfully singable--All's Well, for example, and that little verse Gulliver sings as he looks out to sea. The songs of the film stick in your mind.
When I was a child, the little spy was the highight of the film for me, and he's still cute. (The spies' names are Sneak, Snoop and Snitch, if you're interested!) The conflict between the personalities of King Little and King Bombo is also delightful--the waltzing scene cracks me up every time. There's lots of slapsticky humor and gags in Gulliver, ranging widely in sophistication.
In short, Gulliver is good fun, and should not be missed, as long as you're willing to make a few allowances for age.