- Grant and Carter's talk just before the briefing for the mission.Grant: Wait a minute! They can't shrink me.General Carter: Our miniaturizer can shrink anything.Grant: But I don't want to be miniaturized!
- Grant's guess on what the CMDF could stand for, Combined Mobilization of Delinquent Females!
- The story of how the scene of Cora being rescued from the antibodies was shot. On the first take, the other actors, gentlemen all, judiciously stayed away from Raquel Welch's breasts, resulting in the leftover antibody props looking like a bikini top. On the second take, they all went straight for the breasts. The sequence in the film uses footage from both, along with other takes that had the actors carefully choreographed in where they each would grab.
Funny / Fantastic Voyage