Unusual aspects of the movie Christmas Vacation

The movie Christmas Vacation features a Christmas song by Ray Charles, with an unusual score by Angelo Badalamenti, known for David Lynch movies. Beverly D'Angelo improvised a scene where she grabbed Chevy Chase's crotch, and was initially upset about not having a shower scene. Following the movie, she transitioned to being a sexy Hollywood actress and starred in Pacific Heights. In addition, the speaker plans to rewatch the movie Flight.