The Sex Life of the Polyp (1928)
The Sex Life of the Polyp (1928) is a short film written and performed by Robert Benchley, based on a routine he first did in 1922. The short, which was adapted from an essay by Benchley, documents a dim-witted doctor attempting to discuss the sex life of a polyp to a women's club. This was the second of Benchley's 46 comedy short films, with six made for Fox, one each for Universal Pictures and RKO Radio Pictures, 29 for Metro-Goldwyn-Mayer, and nine for Paramount Pictures.
More at Wikipedia.