You’ve watched it so many times that you know all the words. But did you know these little snippets about everyone’s fave British rom-com?

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1. The airport scene is real

A team of cameramen filmed at Heathrow for a week, and when they captured a scene they wanted to include, they asked people involved for permission to use the footage.

2. Emma wore a fat suit

Director Richard Curtis wanted her character Karen to appear heavier than the actress Emma Thompson was in real life.

3. Hugh hated dancing

Screen Shot 2015-10-22 at 13.47.09In one of the film’s more memorable scenes, newly elected PM David, shimmies and shakes his stuff to Jump For My Love, through the corridors of 10 Downing Street. According to Richard Curtis, Hugh was ‘hugely grumpy’ about filming it. We think he did a great job!

4. It was originally two films

Richard Curtis had written Hugh Grant’s storyline and Colin Firth’s storyline as two separate features, before combining them into one film, and adding the interlinking characters.

5. They weren’t swimming

The lake that Jamie (Colin Firth) and Aurelia (Lúcia Moniz) jump into to save the book pages that have blown in was only 18in deep, so they had to kneel to make it appear deeper.

6. Kris worked for free

No Merchandising. Editorial Use Only. No Book Cover Usage. Mandatory Credit: Photo by Moviestore/REX Shutterstock (1570154a) Love Actually, Elisha Cuthbert, January Jones, Kris Marshall, Ivana Milicevic Film and Television

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Well, for one scene. Kris has such a good time filming the part where his character Colin is seduced by a trio of gorgeous American girls that he returned the paycheck he received for that day’s work.

7. Emma is older

Though Hugh Grant as David plays the big brother to Emma Thompson’s Karen, in reality, Emma is 17 months older.

8. Billy Bob was scared

The American President’s visit to 10 Downing Street in the film caused problems for actor Billy Bob Thornton, as he has a genuine fear of antique furniture.

9. It’s Andrew’s handwriting

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When Andrew Lincoln – playing Mark – shows up to confess his love for Keira Knightley’s Juliet, it’s his actual handwriting on the signs. Andrew, to us you are perfect.

10. Emma’s a crying pro

Emma Thompson did a cracking job when her character Karen excused herself from present opening with kids to cry, after discovering her hubby’s possible affair. What makes it more impressive is that she had to film the scene 12 times. That’s a lot of tears!

11. Karen and Harry patch things up

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Rex Features

Emma’s tears in that heartbreaking scene were enough to make us feel very cross with usually loveable Alan Rickman – or at least his character Harry. But it turns out we can forgive him, because Karen did. In December 2015, Emma Freud, who worked on the film, revealed while live tweeting a Love Actually screening, that Karen and Harry do stay together, ‘but home isn’t as happy as it once was.’

12. The lobster had connections

The school nativity play at the climax of the film famously features a lobster, who was played by Richard Curtis’ daughter Scarlett.

13. Keira was a kid

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Rex Features

In Love Actually we watch Keira Knightley’s character Juliet get married. But the actress herself was still a teenager when the shot the scenes, and she was just 18 when the film was released. Her on-screen husband Peter, played by Chiwetel Ejiofor, was 26.

14. Claudia is a one-off

Richard Curtis reportedly wanted a Claudia Schiffer lookalike for the role of Carol. When they couldn’t find anyone who looked enough like the supermodel, they cast the real deal. Schiffer is said to have been paid £200,000 for the one minute cameo.

15. Aurelia’s a pop star

Lúcia Moniz who played Aurelia represented her native Portugal in the 1996 Eurovision Song Contest. She came sixth.

16. Olivia’s too talented

Screen Shot 2015-10-22 at 13.45.22Olivia Olson, as Joanna, belted out a brilliant rendition of All I Want For Christmas at the end of the film. In fact it was too good and had to be tampered with in post production to make it believable that a child was performing.

17. And finally…

The word ‘actually’ is said 22 times in the course of the film. Count for youself when you rewatch it (because we know you will!)