Carry On Teacher
Pupils run amok at Maudlin Street School in an attempt to hang on to their headmaster. He has applied for a new job, but the students like him and don't want to lose him. They concoct a plan – blacken his record in front of the Ministry Inspector and then he won't ever be able to get another job!
Notable for the appearance of a very young Richard O'Sullivan. Otherwise it's what you would expect from an early Carry On film.