In the movie "Titanic," Rose Dawson Calvert, played by Gloria Stuart as an elderly woman, is depicted as being 101 years old when she dies. The film begins in the present day (1996) and features flashbacks to her youth in 1912, when she was 17 years old. The story showcases her journey and experiences aboard the ill-fated RMS Titanic, as well as her relationship with Jack Dawson, played by Leonardo DiCaprio.

The most historically accurate film about the Titanic is generally considered to be the 1958 version titled "A Night to Remember." This film closely follows the events of the sinking and focuses on the experiences of actual passengers and crew. It was based on the book by Walter Lord, which detailed the disaster in a meticulous manner. While James Cameron's 1997 "Titanic" is renowned for its epic storytelling and visual effects, it incorporates fictional elements and a romantic subplot that diverges from the actual historical events.

The role of Rose in "Titanic" was famously turned down by actress Gwyneth Paltrow. She was offered the part but declined, citing her desire to pursue other projects at the time. The role ultimately went to Kate Winslet, who received widespread acclaim for her performance. The film, directed by James Cameron, was released in 1997 and became one of the highest-grossing movies of all time, solidifying Winslet's career in Hollywood.

As of my last update in October 2023, "Titanic" is not the most watched movie of all time when considering box office gross or cultural impact. However, it was one of the highest-grossing films for many years and remains iconic. The title of the most-watched movie can vary depending on criteria, such as box office earnings or viewership on platforms. "Avatar," directed by James Cameron, has surpassed "Titanic" in box office revenue, making it one of the most successful films globally.