Continuity mistake: Mrs. Tidy and the lady in front of her are in Bunn ward. But when matron is telling Nurse Ball to take Nurse Carter to bed, if you look on the left, the lady who was in front of Mrs. Tidy is in Oven ward.
Continuity mistake: When Matron tells Mrs Tidey that her husband is getting very impatient while she is eating her lunch, Matron puts her hand on a lid on the tray, but when we see Mrs Tidey eating in the next shot, there is no hand on the lid.
Continuity mistake: When Cyril walks out of the bedroom with his nurse's outfit on, there is a sign on the wall saying "You may telephone from here." In the long shot, the sign is totally uncovered, but in a close-up, part of the sign is obscured by the slot machine.
Audio problem: When Matron says "Give it to me" to Freddy after Sid and his gang have been captured at the end of the film, her lips aren't moving.
Continuity mistake: When Matron tells Mr Tidey there is nothing more they can do for his wife, Mr Tidey initially has his flag under his arm, but in the next shot he has the flag in his hand.
Continuity mistake: When Dr Goode tells Sir Bernard about a man turning into one-way street during their conversation in his office, you can see Dr Goode is resting his hands on the desk, but in the next shot he has his hands clasped together.
Continuity mistake: When Matron asks Arthur if he's seen any suspicious men about, Arthur gets up from his seat twice.
Continuity mistake: When Matron enters Dr Prodd's office and goes to his desk, the way Dr Prodd holds his pen changes between shots.
Continuity mistake: When Mr Tidey goes back into the waiting room after being run over by the pursuing patients, he sits on his chair and you can see he is holding his flag with his left hand. But when Sister comes in to tell him the news of his son's birth, the flag is now between his legs.
Continuity mistake: When Cyril says "Come on Dad, hurry up!" whilst waiting outside the store room, he is initially standing by the door, but in the next shot he is now standing in the doorway.
Continuity mistake: When Sid is discussing the plan with Ernie and Freddy, Ernie has his hand around the mug on the table, but in the next shot he has his hands clasped together and the mug is now next to them.
Continuity mistake: During the conversation with Dr Goode and Sir Bernard in Dr Goode's office, the position of Sir Bernard's hands on the desk changes between shots.