Perhaps you are thinking of:
* "Titanic" (1997): This film tells the story of the sinking of the RMS Titanic and has a runtime of 3 hours and 14 minutes.
* "Titanic" (1953): This older film also tells the story of the Titanic and has a runtime of 2 hours and 43 minutes.
* "The Sinking of the Titanic" (1912): This silent film was released shortly after the actual sinking of the Titanic. Its runtime is 60 minutes.
Please clarify what you are looking for and I can help you further.