1.you can see the shadow of the camera on Eddie's back as he is going up the ramp.
2.Frank-N-furter's funny expressions:
a.when he is singing "I Can Make You A Man"
and Janet sings for him.
b.during the pool orgy scene. after he is done
kissing Janet's neck.
3.Dr. Everett Scott is in a wheelchair. So how can he use his legs in the floor show?
4.Brad's glasses. In some scenes he looks like he doesn't even need to wear them. Example: After he is...ahem...seduced, he's not wearing them for the rest of the movie.
5.Frank's tattoo. When he jumps out of the pool, you can see it smeared and running by his left shoulder.
6.If Columbia loves Eddie, then why is he in the freezer?
7.Right before Eddie starts to roll on the floor with Columbia, you can see Frank in the backround sort of shaking his hips and moving his feet around to the music.
8.Magenta's painted toenails. During Janet's and Rocky's special time together, Columbia is doing Magenta's toenails. But when Magenta rubs her foot against Columbia, there is no stain.