Truth behind the people in Love Actually airport arrivals montage

We all remember the heartwarming opening scene of Love Actually - which sees families and lovers reuniting at Heathrow airport, all to a sentimental voice over from Hugh Grant about the power of love.

But how it was actually filmed may well surprise you:

The 2003 film follows the tangled-up and complicated love lives of a number of couples during the festive season in London.

Written and directed by Richard Curtis - arguably one of the best rom-com writers of all time (Notting Hill, Four Weddings and a Funeral and About Time if you need any proof) - the film stars Hugh Grant, Colin Firth, Keira Knightley, Alan Rickman and Emma Thompson... to name a few.

Despite being considered a British classic, even the creator himself finds one particular scene in the film a little weird nowadays.

You probably know the one we're talking about - where Mark (played by Andrew Lincoln) shows up to declare his love for Juliet (Knightley).

Some think it's cute, while others definitely do not.

Universal Pictures

Curtis addressed this with The Independent: “I think it’s a bit weird. I mean, I remember being taken by surprise about seven years ago, I was going to be interviewed by somebody and they said, ‘Of course, we’re mainly interested in the stalker scene,’ and I said, ‘What scene is that?’ And then I was, like, educated in it.”

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Recalling making the flick, he added: “All I can say is that a lot of intelligent people were involved in the film at the time, and we didn’t think it was a stalker scene.

“But if it’s interesting or funny for different reasons [now] then, you know, God bless our progressive world.”

Another infamous scene is opening airport arrivals montage.

Universal Pictures

When passengers are filmed meeting their loved ones at the airport, the scene is actually shot with hidden cameras.

If Curtis would spot something special happening on camera, the crew would rush up to the people and ask for their permission to use it in the film, which is mental and genius at the same time.

Now, LADbible has spoke to the director about the controversy surrounding the age gaps between Knightley and her co-stars.

Fans are shocked every year to discover the actor was just 18 when she played Juliet, just five years older than Thomas Brodie-Sangster, who played little Sam at 13.

Curtis admitted that it ‘didn’t seem too peculiar’ at the time.

“I’m really interested in whether or not I would think ‘don’t do that’ now, ” Curtis said.

“And that actually now we probably wouldn’t have gotten someone as young as Keira was in.”