Medusa Touch...fav of mine, great little British film.
British:
Payroll---brilliant British gangster film from 1961, with Michael Craig and Billie Whitelaw
Revenge--1971 brutal thriller with James Booth and Joan Collins as two parents out to revenge the rape and murder of their daughter. Freddie Jones also stars.
Hell Is A City--classic 1950's gritty crime drama with Stanley Baker
Never Take Sweets From A Stranger---Hammer child sexual abuse drama from 1960, set in Canada, a film years ahead of its time in terms of the subject matter.
Camp On Blood Island--1958 Hammer war drama which caused controversy on its release, due to its then brutal depiction of Japanese torture in a POW camp during ww2..