Karel Reisz was a Czech-born British filmmaker and film critic, one of the pioneers of the new realist strain in British cinema during the 1950s and 1960s. Two of the best-known films he directed are Saturday Night and Sunday Morning (1960), a classic of kitchen sink realism, and the romantic period drama The French Lieutenant's Woman (1981).

Saturday Night and Sunday Morning is a 1960 British kitchen sink drama film directed by Karel Reisz and produced by Tony Richardson. It is an adaptation of the 1958 novel of the same name by Alan Sillitoe, with Sillitoe himself writing the screenplay. The plot concerns a young teddy boy machinist, Arthur, who spends his weekends drinking and partying, all the while having an affair with a married woman.