Love Actually might have been around for 20 years now, but there are some aspects of the film that are still taking viewers by surprise.

Is it how mean Alan Rickman's character is to Emma Thompson's? Well, yes, but not only that.

One of the most shocking facts about the film relates to the age differences between one of the love interests, played by Keira Knightley, and one of the children, played by Thomas Brodie-Sangster.