(William Shatner, James Doohan, Star Trek)
During shooting for "The Wrath of Khan," someone thought it'd be funny to surprise Ricardo Montalbán with an inflatable version of his "Fantasy Island" costar. it seems he thought it was pretty funny too.
And then Roddenberry said, "Hey, maybe we'll make it into syndication!"
(William Shatner, Leonard Nimoy, Star Trek)