Any movie, film, or story with a predictable ending. Ending usually involves death or despair. This phrase obviously gets it's meaning from the famous Titanic movie. As great and beautiful as the ship is, you know how it will end... at the bottom of the ocean.
1: You wanna go watch the Ghandi movie, it's on TV.
2: Eh, I already know there will be a titanic ending.
Other movies: Titanic, Anne Frank movies, Ghandi, any movie about war, movies involving assassination , movies about the holocaust, Martin Luther King Jr.