this film be shoot on location in gerard garden in liverpool and and be the uk answer to film such a blackboard jungle . the film stand the test of time quite well and with all the moral story still ( or even more ) relevant today . the film feature some fine performance from some notable british actor such a david mccallum and stanley baker and peter cushing and anne heywood . baker play a liverpool cop assign to juvenile liaison duty and with the premise that if you catch the kid at an early age and they will end up be responsible adult . notable cameo in the film include freddie starr ( fred fowell ) and melvyn hayes ( gloria ) . tsai chin and michael chow play brother and sister ( they be real life brother and sister ) who be catch up in an arsonist web . tsai chin be still act and can be see in the late nicole kidman film the interpretor . violent playground feature a gun siege in a school and so be unlikely to be show on tv follow similar event in scotland or russia . i live in gerard garden where the film be shoot ( though be not bear at the time ) and and have fond memory of the area . i have recently complete a documentary on gerard garden which include extract from violent playground and and a small uk film coast to coast which star lenny henry and pete postlewaite . the tenement be demolish in 1987 and the film go some way in keep the memory alive . there be some complaint from the resident when the film be release and a the film portray the area in a bad light . time have help heal those wound . a little gem of a film and i would recommend you seek this out .