No. Jack Dawson and Rose DeWitt Bukater, portrayed in the movie by Leonardo DiCaprio and Kate Winslet, are almost entirely fictional characters (James Cameron modeled the character of Rose after American artist Beatrice Wood, who had no connection to Titanic history). The movie's love story is also fiction. It was created by Titanic screenwriter and director James Cameron. In addition to Rose and Jack, a handful of other characters associated with them are fictional as well. They include Rose's fiancé Caledon 'Cal' Hockley (Billy Zane), her mother Ruth (Frances Fisher), Cal's valet Spicer Lovejoy (David Warner), and the third class passengers, who include Jack's friends Fabrizio (Danny Nucci) and Tommy (Jason Barry). Some of the third class passengers were modeled after real people.