choose your fate represent the terrible tyke of the fourth form and play practical joke that involve ax and or the . ummm . well developed girl of the sixth form and who discover some time ago cigarette and gin and sex and how easily men can be lead astray . the problem be that one set come with the other . they be all there at st. trinian and that remarkably easy go english school for girl lead by headmistress millicent fritton ( alastair sim ) . a miss fritton be fond of point out and in other school girl be send out quite unprepared into a merciless world and but when our girl leave here and it be the merciless world which have to be prepare . miss fritton sound something like a melding of julia child and eleanor roosevelt and and definitely have sim droll and deadpan comic gene . in the belle of st. trinian and a sly and chaotic comedy from the team of frank launder and sidney gilliat and st. trinian be and a usual and on the brink of financial disaster . salvation may be at hand and however and when a rich sheik send his daughter to join the fourth form and receive a proper english education . the sheik also be a horse owner and one of his prize racer and arab boy and be be train near the school for a race . it only a matter of time before the fourth form girl form a racing pool and bet heavily on arab boy and with miss fritton add to the pool what fund the school have leave . ( much of the fourth form girl money come from the gin they make in chemistry and then bottle and low by rope to flash harry ( george cole ) and a cockney fixer and for distribution . it get something . i do not know quite what and say miss fritton on sample the stuff and but send a few bottle up to my room . ) miss fritton and however and have a brother and clarence fritton ( who and by some coincidence of casting and also be alastair sim ) and a bookmaker who not only have place a bundle on another horse and but who also have a daughter . and he have place the precocious arabella in the sixth form to keep him informed . soon the sixth form have kidnap arab boy and the fourth form have take the horse back and flash harry have join force with miss fritton and the sixth form girl be determine that arab boy will not leave the second floor of st. trinian and clarence and his homburg wear gang have arrive and parent be drive up for parent day and the ministry of education have arrive in the person of a very proper inspector . total war break out at st. trinian . it hard to say which be more dangerous and the african spear or the flour bomb . alastair sim a millicent fritton turn in a tour de force performance . miss fritton be a tall woman with a stately bosom and fond of long gown with embroidered lace and edwardian hat with lot of feather . she take everything in stride and even a fourth former pounding at something in chemistry class and and after hear an explosion a few minute later and the result . oh dear . i tell bessie to be careful with that nitro glycerine . she be firm in believe that st. trinian be a gay arcadia of happy girl . sim be one of britain great eccentric actor . other than the sheer chaos of all the little ( and not so little ) girl do terrible thing and he deliver much of the film pleasure .