"The Fearless Vampire Killers" (1967), aka "The Fearless Vampire Killers, or Pardon Me but Your Teeth Are in My Neck"
A horror/comedy classic directed by Roman Polanski, featuring Jack MacGowran, Roman Polanski, Alfie Bass, Sharon Tate and Ferdy Mayne.
IMDb plot summary: "The old bat researcher, professor Abronsius and his assistant, Alfred, go to a remote Transylvanian village looking for vampires. Alfred falls in love with the inn-keeper's young daughter Sarah. However, she has been spotted by the mysterious count Krolock who lives in a dark and creepy castle outside the village..."
Amazon review: "One of Roman Polanski's more overt comedies, this 1966 monster spectacle stars Jack MacGowran and Polanski as a clunky but heroic pair of vampire killers. Called upon to rescue the beautiful and buxom daughter (Sharon Tate) of an innkeeper from a Draculalike bloodsucker, the duo muddle through all sorts of scrapes, the most intense being a scene in which a room full of dancing vampires realize the human interlopers are the only ones in the room who are reflected in a mirror. Scary and funny, the film has some unforgettable set pieces, a terrific score, one of the few records of Tate's extraordinary beauty, and vibrant performances. Not exactly Polanski in a relaxed mode, but clear evidence of his estimable skills as a director of both brilliance and polish."
Includes the 10-minute promotional featurette "The Fearless Vampire Killers: Vampires 101" (http://us.imdb.com/title/tt0445366/).
Ripped from region 2 DVD. 107 minutes, widescreen. XviD, 640x352 (1.82:1), 25fps, 160kbps VBR MP3, mono soundtrack.