Other mistake: Whenever Helen Hyde turns back into Richard Jacks, none of the clothes ever seems to rip or stretch - they both have different body types.
Continuity mistake: During the initial transformation into a woman, Richard's fingernails grow approximately a half inch in length. Richard examines his hands as his arm hairs shrink. Moments later, Richard's genitals shrink and his fingers have short nails, about 5 seconds later, his hair grows longer and his fingers once again have long nails.
