Dh bought the Shrek 2 DVD last week to play on the coach on a trip down to London. The children on the coach were aged between 6 and 14 and we specifically chose a U film, not a PG one. I was astounded when not too far into the film I heard 2 swear words shouted out.
Luckily no-one complained but it could have landed us in trouble. I know that dd's school show U Disney films and we (possibly foolishly) assumed that Shrek would be along the same lines.
We thought the film was great and very funny, but I was just a bit shocked. I'm not a prude, but when it is other people's children you have to be careful.