Could Jack have survived in the final moments of Titanic is a question that still haunts fans 20 years later but just don't ask actor Leonardo DiCaprio. Fans have long argued that Rose should have made room for Jack on the floating piece of lumber after Titanic's sinking. Rose, who lay atop the door, survived in the end while Jack, who held on to the edge, froze to his death in the icy Atlantic waters.

Both director James Cameron and actor Kate Winslet have weighed in on the scene but DiCaprio refused to get drawn into the debate despite gentle coaxing from his "Once Upon a Time in Hollywood co-stars Brad Pitt and Margot Robbie.