The Titanic Heaven scene is the final scene of the Titanic film. This scene shows the old 101 year old Rose DeWitt Bukater dreaming/dying (speculation), showing her on the Titanic and reuniting with Jack Dawson and all the people who perished on the ship.
The scene starts when it shows the sunken Titanic before showing the normal floating one from Rose's perspective. She goes through a door with all the perished people around the grand staircase looking at her. She approaches the staircase to see Jack standing looking at the clock in the middle of the stairs. He turns around finding Rose coming to him and Jack gives Rose his hand, Rose does the same. They kiss while the others clap and cheer.