Continuity mistake: When Simon goes into Ruthie's room to talk with her, she is colouring in a Hello Kitty colouring book. As the camera switches between her and Simon, the picture she was colouring is alternately finished, then not finished, then partially coloured over the series of the entire scene. (00:36:45)
7th Heaven (1996)
1 continuity mistake in season 4 - chronological order
Starring: Jessica Biel, Catherine Hicks, Stephen Collins, Beverley Mitchell, Happy
Revealing mistake: Throughout the entire series there is one staircase upstairs and two downstairs. And, they more than likely are not the same staircase because the two downstairs are on opposite ends of the house.
Ruthie: Bad words make me sound bad.
Simon: No, bad words make you sound stupid.
Trivia: This episode has the infamous scenes in which Mary wants Matt's help with kissing. Supposedly, the original script involved the siblings actually kissing for practice, but Jessica Biel (playing Mary) and Barry Watson (Matt) refused to do it.