Winslet wagered a guess that co-star DiCaprio has “got PTSD” from being asked incessantly about the scene, in which – spoiler alert – he freezes to death because there’s not enough room for him on a floating door that Winslet’s character, Rose, has taken refuge on after the Titanic’s sinking.

Kate Winslet has revealed that her son Bear, 10, was left in floods of tears when he watched Titanic for the first time last year, while her older children have a different favourite film of hers