Went the Day Well? is a 1942 British war film adapted from a story by Graham Greene and directed by Alberto Cavalcanti. It was produced by Michael Balcon of Ealing Studios and served as unofficial propaganda for the war effort. The film shows a Southern English village taken over by German paratroopers, reflecting the greatest potential nightmare for the British public of the time, although the threat of German invasion had largely receded by that point. The film is notable for its unusually frank, for the time, depiction of ruthless violence.

Alberto de Almeida Cavalcanti was a Brazilian-born film director and producer. He was often credited under the single name "Cavalcanti".