Misc: In dentistry, what are "angle irons" and 'rolex'?

Questions

Movie Musicals: This 1977 movie featured the Bee Gees on its soundtrack:?

Movie Musicals: This movie starred Shirley Jones in the 1955 musical of a state:?

Movie Trivia: Ballad sung by a woman pretending to be a man pretending to be a woman.?

Movie Trivia: Rita Moreno screeches this Merman hit with heavy accent in _The Ritz_.?

Movie Trivia: This ignored film features a song sung to Whoopie Goldberg: "Sista..."?