Happy Birthday, Wanda June is a 1971 American comedy-drama film directed by Mark Robson, based on a 1970 play by Kurt Vonnegut.

Big-game hunter and war hero Harold Ryan returns home to America, after having been presumed dead for several years.

He was in the Amazon Rainforest hunting for diamonds with Colonel Looseleaf Harper, a slow-witted aviation hero, who had the unhappy task of dropping the atomic bomb on Nagasaki.

Wanda June and several other deceased connections to Ryan (including his ex-wife Mildred who drank herself to death because she could not stand Harold's premature ejaculation, and Major Siegfried von Konigswald, the Beast of Yugoslavia, Ryan's most infamous victim) speak to the audience from Heaven, where Jesus, Judas Iscariot, Adolf Hitler, and Albert Einstein are happily playing shuffleboard.

[3] The Gene Frankel Theater staged an Off-Off-Broadway revival in April 2018, directed by Jeff Wise and featuring Jason O'Connell, Kate MacCluggage, and Matt Harrington.