Continuity mistake: In the scene when Charles Hawtrey and some people rush up the stairs to see what all the fuss is about, Jim Dale goes down the stairs on a delivery trolley. Charles Hawtrey then says "Oh no!" and both he and the other people run down the stairs. In the next scene, Jim Dale appears at the bottom of the stairs and there are no people in sight, but in the next scene, Charles Hawtrey and the other people appear out of nowhere to rush down the stairs to avoid being hit by the trolley.
Continuity mistake: When Dr Nookey runs out of the X-Ray Room and trips over the cleaning lady's vacuum cleaner, he pulls the fuse box off the wall. At this point, the bottom wire connecting the fuse box to the wall has nothing around it, but in a close-up of the box in the next shot, there is now a red coiled cable around the wire.
Continuity mistake: When Dr Nookey tells Matron that Mr Carver is bringing over a friend to the clinic and Matron tells him "We're full up", the position of Nookey's fingers on the bottle he is holding change between shots.
Continuity mistake: When Ellen says "Jim is doing wonderful work here" to Mr Carver at the clinic, you can see that Mr Carver is looking directly at Ellen, but when the camera angle changes to behind Ellen in the next shot, Mr Carver is turning his head around and looks at Ellen again.
Continuity mistake: When Dr Nookey pushes Lady Puddleton into his office for her to be weighed, you can that Lady Puddleton is facing forwards, but when the camera angle changes to inside Nookey's office in the next shot, she is now facing backwards.
Continuity mistake: When Dr Nookey goes down the emergency exit stairs on the hospital trolley, he reaches the bottom of the stairs and Dr Stoppidge and several others run to avoid being hit by the trolley. In the next shot, Nookey is now back at the top of the stairs and reaches the bottom a second time.
Continuity mistake: When we first see the patient on the breathing apparatus lying in his bed during the sequence in which Dr Nookey tampers with the hospital's fuse box, there are some metal walking sticks next to the patient's bed. But after a shot of the breathing apparatus going haywire, we cut back to the patient and the metal walking sticks have disappeared.
Continuity mistake: When Mr Carver and Ellen are walking along outside the new clinic, a close-up shows them standing still.
Continuity mistake: When we see the couples dancing to the band at the beginning of the Hospital Buffet and Dance sequence, you can see a lady wearing an orange dress dancing with her partner and they are at the far end of the dance floor. In the next shot, they are now dancing near the band.
Continuity mistake: When Gladstone hands Dr Nookey a bottle of serum in his office, Nookey is initially holding the bottle in his left hand but in the next shot he is holding it in his right.
Continuity mistake: When Gladstone says "Just a quick slash!" to Lady Puddleton whilst holding a knife in his hand, the end of his nightcap is resting on the shoulder of his dressing gown. In the next shot, the end is now on the collar, and in the shot after that, it is back on the shoulder again.
Continuity mistake: When Mr Carver and Dr Stoppidge are in Carver's office, Carver hands him a book and when Carver says "We must find out what his cure is", you can see Stoppidge is holding one of the pages with his fingers. In the next shot, Stoppidge now has his hand on the book.