What was the first movie to show full frontal female nudity?

Hugs and Kisses (1966, Sweden) was the first movie to show full frontal female nudity.

Who hosted the TV show “Fernwood 2-Night” (synd., 1977)? Barth Gimble, played by Martin Mull on the TV show "Fernwood 2-Night" (synd., 1977). He was the twin brother of Garth Gimble, a character on "Mary Hartman, Mary Hartman" (synd., 1976-78).
What was the title of the sequel to the X-rated Swedish movie I Am Curious (Yellow) (1969)? I Am Curious (Blue) (1970) was the sequel to the X-rated Swedish movie I Am Curious (Yellow) (1969).
What two horror directors appear in The Silence of the Lambs (1991)? Directors Roger Corman and George A. Romero appear in The Silence of the Lambs (1991). Jonathan Demme directed them.
Who requested that DJ Dave Garland (Clint Eastwood) Play Misty for Me (1971)? Jessica Walter, playing Evelyn Draper requested that DJ Dave Garland (Clint Eastwood) Play Misty for Me (1971).
What was the first movie Gene Wilder directed? The first movie Gene Wilder directed was The Adventure of Sherlock Holmes' Smarter Brother (1975). He also wrote the screenplay and starred as Sigerson Holmes.
Who designed the title character in Godzilla (1954)? Special effects man Eiji Tsuburaya designed the title character in Godzilla (1954).