Revealing mistake: After Xena gets out of that chair, she does a swinging kick from her whip and you get a shot of her feet connecting with her victim's chest. The fake feet that are used are seen bending backwards.
Xena: Warrior Princess (1995)
1 revealing mistake in Return of Callisto - chronological order
Beware Greeks Bearing Gifts - S1-E12
Revealing mistake: At the end when Xena is fighting Deiphobus, he pushes her up against a large rock, every time she hits the rock it moves, as if it were foam.
Trivia: This was the 2nd of a two part episode, and the script had to be totally re-written as a mostly Xena Free episode due to Lucy breaking her pelvis in an accident on the Jay Leno show.