Name's the Same/Theatre
- The Medium and Sweeney Todd: The Demon Barber of Fleet Street both have a boy Woobie called Toby assisting the not-so-nice principal female character.
- Vanities is the name of a series (1923-1940) of musical revues by Earl Carroll, a 1976 play by Jack Heifner, and a 2000's musical adaptation of the latter.
- The Bock and Harnick musicals Tenderloin and She Loves Me have unrelated songs titled "Dear Friend."
- No, Titanic: The Musical is not based on the film, in fact it predates it.
- Of course, as the Titanic was an actual ship, there are many books, paintings, etc. titled after it.