Language. Lots of it. I wouldn't mind language, and this movie definitely makes me smile and have the occasional laugh.
Epicboy21 here. There's many moments in this film which may be considered inappropriate: one where a young Mia Sara asks a character if they saw her undressing and getting changed beside the pool. A few choice words about prostitutes are also thrown around. But still, this movie makes me smile. However, Ferris never faces any consequences: teens and even adults use language such as "-ss", "-sshole", "b-st-rd, "b-tch", "d-ck", "d-ckhead, "sh--" and similar coarse language.
The objectionables: a certain principal is a little inappropriate: a girl that looks like Ferris from the back reacts to his statement: "Your -ss is mine" and the girl spits water through a straw into his face, mistaken as a pervert, so this scene may be a little sexually suggestive.
He also calls a dog on a street a "f--ker". Also, he might just quietly mutter "f--k" as he trips over. Considering Australia got it a PG surprised me: here, for a PG, they don't allow the F-word in there.
Anyway, there's one scuffle, also, which I think was brief; really, any violence (and in very rare instances) is very mild, G. PG-13 is recommended for this, and wait unless you don't mind some language that's pretty usual for teen films these days. No worse than today's teen films, I can tell you now. Some drinking and smoking, of course, but by responsible adults. Anyway... I thought it was good. Watch it. Thankyou for reading.