In July, 2012 we paid a return visit to Hollywood and Grauman's Chinese Theater. Sid Grauman was a San Francisco showman who came to Los Angeles and built three major houses, the Million Dollar, the Egyptian, and the Chinese. The theater has hosted many film premieres, but is most famous for the hand and footprints (and hoofprints and nose prints and other types of prints) in the forecourt.
William Powell and Myrna Loy played together in many movies, including the Thin Man series. They both left their hand and foot prints on 20-October-1936. This was around the time of the release of Libeled Lady with Powell, Loy and Jean Harlow.
Powell's "Sid old boy, I am happy to put my foot into it for you" sounds very much like something he would say in a movie. Loy's "To Sid who gave me my first job" remembers her time performing in live action prologues at Grauman's Egyptian up the street.