I read 20,000 Leagues Under the Sea, From the Earth to the Moon, Mysterious Island, and A Journey to the Center of the Earth in elementary school, in abridged Scholastic Book Club editions. In high school, I read the originals, and collected some of the Ace paperbacks of Verne's lesser-known works: Michael Strogoff, The Begum's Fortune, The Carpathian Castle, Master of the World, The Village in the Tree-Tops.
During the 1950s and early 1960s, "Disney" versions of these Verne classics appeared, with two important changes:
1. To draw the all-important Boomer audience, a teenager.
2. To ensure a Hollywood fade-out-kiss, heterosexual obsessions were added.
In the 1954 movie (the only one actually from Disney), Ned (Kirk Douglas, not a teenager) sings about "the girls I've loved on nights like this," whose kisses make him "bubble up like molten lava."
Pat Boone as Alec (Axel). And in the last scene he's completely nude except for a sheep.
But at least they are shirtless or semi-nude most of the time, especially Herbert Brown (Michael Callan). The scene where he and the girl hide from a giant bee in a honeycomb is still scary today.
The 1962 Disney version (actually from 20th Century Fox) changes the cast, adding pilot Jacques (teen idol Fabian Forte) and newspaper report O'Shay (Red Buttons). Each falls in love with a woman en route; the movie ends with two couples enthusiastically kissing. And there's no beefcake (although Fabian, right, often appeared shirtless and nude in other productions).
This was also the era of the Disney Adventure Boys -- like Tommy Kirk, James MacArthur, and Kurt Russell -- hired to display Cold War masculinity, which meant two things: muscular physiques and heterosexual obsession.