As most others note, this is an excellent, superbly performed and really hilarious slapstick comedy.
The sole exception to this view on this website states that the film is too old to be funny and is in any case in some unspecified way nasty and unpleasant. I really can't imagine why anyone would think so.
Well, not in a sane and decent world, I can't. But of course that isn't the world we live in any more, but a world so morally topsy-turvy that silly fun, butcher's shops and hospitals as sources of innocent humour, and being clownishly kind to amuse little children are frowned upon as very, very dubious attitudes - - - whilst this same mad world regularly imposes horrors unimagined in previous times, by way of a supposedly acceptable normality. I daren't specify, of course, with the pc police on patrol everywhere. AND there was a very pretty girl with not very much on - - - but I suppose the less said about that the better. (Never mind the patient mischievously goosing Norman because he's dressed as a nurse!)
Talking Pictures TV, who recently did us a real service by showing us this laugh-out-loud Norman Wisdom vehicle - certainly the funniest film I've seen since the defining disaster of our globalised world spread misery and danger everywhere - , were even obliged to head off those who would prefer this station were banned forthwith by OfCom (they keep trying) by issuing a warning to viewers before showing it of the apparently offensive and distressing material which it contains.
Really, our world is sick in the head as well as in body. We've just got to escape it. This really is a horrible time to be alive.