When the actors and crew arrived on the Titanic set in summer 1996, it was clear from the sense of magic and excitement it was going to be a hit.
Filmed at the purpose-built Baja Studios in Mexico, and with a budget of £163million, James Cameron’s tale of star-crossed lovers Rose and Jack on board the doomed liner was already the most expensive movie made to date.
But what no one could foretell was how massive it would become, grossing a whopping £1.5billion to hold the title of biggest ever box office hit for 21 years.