Episode #4.6 - S4-E6
Continuity mistake: When Pete asks the man if they can have it in writing as they are having a family dinner, the kitchen door is closed, then the shot goes back to the man they are talking to at the front door, in the next shot which returns to Sue and Pete in the space of less than 2 seconds the kitchen door has been opened. (00:01:10)
Answer: Acording to all online sources, her birthday is 30th August 2001. It's also documented that in Season 5 she is in year 7 and 11 years old. If her birthday is 30th August, she will start year 7, 2 days after her 11th Birthday so this is correct.
Ssiscool ★