Teenage friends Will McKenzie, Simon Cooper, Jay Cartwright, and Neil Sutherland finish their A-levels and prepare to leave Rudge Park Comprehensive.

In the town centre, the boys are tricked into visiting a deserted bar, and meet a group of four girls who are holidaying: Alison, Lucy, Lisa, and Jane.

Will and Alison bond over their shared humour, Simon tells Lucy all about Carli to her frustration, and Neil and Lisa sit in awkward silence.

Desperate to buy a ticket for the boat party to try to reconcile with Carli, Simon naïvely "sells" all of his clothes to James without receiving payment.

The story remained mostly similar besides small changes such as a scene in which Jay hires a motorbike, pretending he knows how to ride it, but failing by crashing into a wall.

[8] It retained its number 1 position in the UK film charts for four weeks before being overtaken by Tinker Tailor Soldier Spy on 20 September 2011, by which time The Inbetweeners Movie had grossed £41.8 million overall.

[10] The film saw a limited theatrical release in the United States on 7 September 2012, where it grossed $36,000 making its total box office revenue $88,025,781.

The website's critical consensus reads, "It arguably plays most strongly to fans of the British series, but even viewers who have never seen The Inbetweeners on TV may find themselves won over by the film's surprisingly tender ribaldry.

"[13] Steve Rose of The Guardian gave the film three stars out of five, giving particular praise to Simon Bird's performance and arguing that the film "updates the teen summer holiday formula surprisingly entertainingly, considering it doesn't subvert it one iota and the formula was already done previously with Holiday on the Buses and Kevin & Perry Go Large among others.

"[14] Tim Robey of The Daily Telegraph also gave a positive assessment of the film, praising it as "an enormous hit, a Mamma Mia!

"[15] Screen Daily, on the other hand, gave a mixed review, praising the performances of the main cast and proclaiming the film "Britain’s delayed riposte to American Pie", yet simultaneously arguing that it "can't quite shake off its TV roots, and plot-wise, this is nothing the Greek tourist board would want to advertise.

[18] On 12 December 2011, The Inbetweeners Movie was released on DVD and Blu-ray Disc in the UK by 4DVD, with the latter version sold as a triple pack containing both formats along with a digital copy of the film.

Both versions include a number of special features, such as a making-of documentary, footage from the film's London premiere, various deleted scenes, cast commentaries and a blooper reel.

[20] By 17 December, estimated sales reached one million, resulting in the film displacing the home media release of Paul as one of the five best-selling DVDs of the year in the UK.