Kind of boring - tame enough for 5 year old - NO 'SEX SCENE'
Despite other parent's reviews, we watched this with our 5 year old girl and 7 year old boy. It was Halloween and we had watched the original the week before.
Us adults found it rather boring. My 7 year old boy liked it. My 5 year old girl was bored. Yes, they actually talk about sex for 1 minute at one part. Another parent here said they were uncomfortable during the 'sex scene'. There was no 'sex scene'. There was discussion of the possibility of sex in a rather opaque manner that the kids didn't understand. To say this was a 'sex scene' is a huge exaggeration. The implication was off camera the mean nanny was stimulating Fester with her hands - for a total of about 5 seconds before the scene cut away. There was no nudity of any kind. It was all left up to our adult imaginations. And it went completely unnoticed by ourkids.
Wednesday tells another girl that their parents had a baby by having sex (in response to the girl's stork story). One girl in the summer camp swore (I think it was 'damn' or something relatively tame).
Because we read the reviews here we were ready to have the 'sex' discussion if it came up. It didn't. Went over both kids heads. They've heard far worse swearing on other shows.
My only real concern while watching was that they understood that it was all 'pretend'. That Wednesday and Pugsly weren't REALLY trying to kill their baby brother. That it was all pretend/acting for Halloween scary fun movie. I mentioned this so often during the movie that I started to annoy my kids with them responding, 'dad we know, we know'.
So, if your kids are even moderately exposed to the real world then I say 5 and up is fine. Much prefer The Great Pumpkin for a Halloween movie but the kids had seen it so many times they are bored of it.