The Gavin and Stacey finale went down a storm with fans when it hit screens on Christmas Day, bringing an end to a story that was 17 years in the making.

However, viewers have been quick to spot a hilarious continuity gaffe, during Mick Shipman’s touching speech to Smithy at his stag night.

The moving scene showed an emotional Mick describing Smithy as a second son to himself and wife Pam, after they struggled to conceive another child.

But sharing a clip of the scene on TikTok, one fan noticed that Mick’s pint appeared to go from full, to half-full, and back to full again during the scene.

They captioned the post: ‘Who else noticed Mick’s pint?’

Several fans were quick to share their amusement in the comments, writing: ‘Mick showing he can still drink the younger blokes under the table;

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Gavin and Stacey fans have spotted a hilarious continuity error during the show’s last ever episode, as Mick Shipman paid tribute to Smithy during his stag party

Sharing a clip of the scene on TikTok, one fan noticed that Mick’s pint appeared to go from full (left), to half-full (right), and back to full again during the scene

‘I love a good continuity error; Mick showing he can still drink the younger blokes under the table.’

After Gavin and Stacey’s final episode hit screens, star James Corden took to Instagram to share a slew of behind-the-scenes snaps.

The actor, who stars as Smithy and co-created the series with Ruth Jones, also thanked the whopping 12.5M fans who tuned in for the send off in an emotional post.

James, who watched the finale on Christmas Day alongside Ruth, shared photos from the set including one of himself and Matthew Horne, who plays Gavin, in bed together hand-in-hand.

Meanwhile Alison Steadman (Pam) and Rob Brydon (Uncle Bryn) posed playfully for the camera while filming the episode’s hysterical drunken party scene.

James also captured Samuel Anderson, who stars as Smithy’s pal Fingers in the show, serenading the cast on the trumpet during a break in filming.

He captioned the post: ‘Here’s some behind the scenes photos from the special. Thank you so much to everyone who watched last night’.

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The moving scene showed an emotional Mick describing Smithy as a second son to himself and wife Pam, after they struggled to conceive another child

Several fans were quick to share their amusement in the comments

‘It means more than you’ll know. All my love, James x’.

Following the episode airing James and Ruth shared a cute selfie to Instagram as they enjoyed a cup of tea and wearing festive jumpers after watching the show together.

James wrote: ‘We had to be together to watch tonight. We really hope you enjoy the finale of Gavin and Stacey.

‘It has been the greatest privilege making this show over the past 17 years. We’ll see you on BBC One at 9pm. The years go by so fast, let’s hope the next beats the last. Happy Christmas. x’

Gavin and Stacey: The Finale drew in a whopping 12.5 million viewers to become the most watched show on Christmas Day.

Viewers had been waiting for five years to learn the fate of the BBC sitcom’s beloved characters and see if Smithy had accepted Nessa’s proposal.

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Gavin and Stacey: The Finale drew in a whopping 12.5 million viewers to become the most watched show on Christmas Day, with the final episode hailed as ‘perfect’ by fans

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The final episode was hailed ‘perfect’ by viewers, who were left in tears as the long-running show finally aired its last episode after 17 years.

The BBC won the battle of the channels when it came to ratings as 10 million also tuned in to watch the return of Wallace & Gromit: Vengeance Most Fowl.

EastEnders did well with 8.7 million watching Cindy Beale left for dead after being hit with a shovel in the two-part episode. In comparison, just 2.8millioned tuned in to see Gail Platt’s final episode on ITV’s Coronation Street.

Call The Midwife – which will air a second part on Boxing Day – drew in 6.9 million viewers while 5.1 million watched The King’s annual speech.

Nicola Coughlan’s starring role in the Doctor Who special with Ncuti Gatwa saw 5 million tune in, while 4.6 million watched drag queen Tayce make history by winning Strictly.