one of the funniest carry on movies and the third with a medical setting .
the main story is about dr .
james nookey ( jim dale ) who is disliked by his superiors , frederick carver , head of the hospital ( kenneth williams ) , and dr .
ernest stoppidge ( charles hawtrey ) who seems to dislike everyone .
they attempt to cause him as much trouble in the hospital as possible and all the blame is laid on nookey .
carver learns of a possible job opportunity from wealthy ellen moore ( joan sims ) on a distant tropical island and gets nookey trannsferred there .
when nookey arrives at this island , he meets gladstone screwer ( sid james ) who has lived on the island just about all his life .
screwer is in possession of a wonderful slimming drug made from natural ingredients .
dr .
nookey returns with the drug to england and sets up a new slimming business with ellen moore 's financial backing .
however , nookey and moore face opposition from screwer who goes to england to cash in on the drug , and carver and stoppidge who want to know the ingredients to create a rival drug .
the performances are all very commendable .
sid james has a slightly ambiguous character to play this time and he excels in his role .
kenneth williams , as usual , plays the unpopular and cunning head of the hospital .
joan sims is entertaining as the wealthy benefactor and jim dale should really head the cast with his excellent portrayal of bumbling nookey .
charles hawtrey plays an ' out - of - character ' role as dr .
stoppidge , the nasty and evil practitioner who wants to knock nookey off his perch .
some critics have said that this combination of hawtrey and stoppidge does not work well , but i think that it at least gives hawtrey a new part to play instead of the usual dimwit characters .
as a matter of fact , hawtrey is suitably cunning in the part .
other regulars in the movie include hattie jacques as the matron yet again ( but this part is probably her most boring ' matron ' ) and barbara windsor as nookey 's love interest and unofficial ' women 's lib ' campaigner , goldie locks .
both jacques and windsor play their parts well
.
patsy rowlands appears briefly as miss fosdick , and there are very small cameos from wilfrid brambell ( from ' steptoe and son ' fame ) and peter butterworth .
the jokes are mostly very funny , the story is quite appealing , and the regulars seem interested in what they 're doing .
although it is another medical carry on movie and some of the jokes are borrowed from previous movies , it still comes out on top
( it is the best medical carry on ) because of the above factors .
a must - see carry on movie .
the jokes are mostly very funny , the story is quite appealing one of the funniest carry on movies a must - see carry on movie it still comes out on top the performances are all very commendable excels in his role play their parts well