This Love Actually fact will change how you see the film

Love Actually came out 15 years ago this year - it was released in November 2003. There's a stat to make you feel old.

Keira Knightley, 32, played the newly-married Juliet, was 18 at the time of the film's release. Her plotline involved the being creepily videotaped by the best man at her wedding, who then tells her he loves her on her doorstep on Christmas Eve. She's somehow charmed by this and gives him a parting kiss.

Thomas Brodie-Sangster. 27, played Sam, the stepson of Liam Neeson who is grieving the death of his wife, Joanna. Sam has fallen for an American classmate, also named Joanna, and learns the drums to win her over at the Christmas pageant, eventually chasing her through an airport to tell her how he feels before she returns to the United States.

At the time of the film's release, Brodie-Sangster was 13. Meaning the age difference between the two actors was five years.

For two very different plotlines, the roles for which feel like they should be about a decade and a half apart in age.

People have since realised this fact, and cannot handle that information (warning: aghast swearwords are ahead).

And, well, now the age difference is an international trending news story.

What a time to be alive.

HT News.com.au