Kevin & Perry Go Large is a 2000 British teen coming-of-age sex comedy film based on the Harry Enfield sketch Kevin the Teenager. The film was written by Dave Cummings and Harry Enfield and directed by Ed Bye. Enfield, Kathy Burke and Louisa Rix all return to their roles after previously appearing on Harry Enfield & Chums. James Fleet replaced Stephen Moore as Kevin's father. The film received mixed reviews but has since gained a cult following.

Teenager Kevin has tried to lose his virginity for three years. He and his best friend Perry decide they want to go to Ibiza to become DJs and seduce women. However, when Kevin's parents, Ray and Sheila, see his bad school report, they forbid the trip. They later compromise: the boys can go if they get jobs to pay for it. Searching fruitlessly for jobs, the boys end up at a house party, where a popular girl, Sharon, passes out drunk next to Kevin. Perry, seeing the two in bed together the following morning, assumes Kevin has lost his virginity. Kevin lies that he had sex with Sharon, but is overheard while leaving the party. In the town centre, an angry Sharon confronts and humiliates Kevin about this, mockingly calling him "virgin".

Distraught, Kevin arrives home in time to sign for the delivery of Ray's new credit card. He seizes the card and takes it to the bank to steal the plane fare from Ray's bank account. At the bank, he accidentally foils a robbery, and the manager rewards him and Perry with money with which the boys plan to fund the trip. As a reward, Kevin's parents approve of the trip, as long as they can accompany the boys, much to Kevin's horror.

In Ibiza, the boys spot the 'girls of their dreams' Candice and Gemma. They also meet club DJ and record producer Eyeball Paul. The boys spend the day at the beach and chat with the girls but are unsuccessful in seducing them.

That night, the boys walk filming the events around them. Kevin films a couple kissing, and they turn out to be Ray and Sheila. Kevin sulks while he and Perry hang out with Ray and Sheila, ending up at the club "Amnesia" where they dance the night away—without Candice and Gemma, who were refused entry by the doorman, who holds a hand-mirror to call them ugly.

The next day, the boys go to Paul's, and he makes them clean his house in return for his listening to their tapes. While leaving, they spot Candice and Gemma, but again their attempts to woo them end in failure, although the girls bond with the boys when realising they know Eyeball Paul and they may be able to get them into the clubs.

The boys wait outside the girls' hotel for four hours while the girls have a makeover, and they are admitted to Amnesia with Kevin and Perry, but yet again the boys "strike out" when they get vomited on by other revellers and leave embarrassed while the girls meet two other men in the club. That night, Perry videotapes Ray and Sheila having sex. The next day, Paul listens to the boys' music as they clean his kitchen. He stumbles across the parents' sex tape and shows it to everyone. Kevin lashes out at Perry after realizing that it was Perry who filmed them. Baz, Paul's manager and chauffeur driver, later persuades Paul to give the video back to the boys.

Kevin spends the rest of the day sulking around alone and becomes dejected after seeing the girls with the men from the club. Perry spends the day at the beach and bumps into the girls. The two men who are revealed to be gay lovers whom the girls had befriended. Gemma reveals she is attracted to Perry and Candice admits to liking Kevin. Perry then runs into Eyeball Paul, who says he likes their song and he will play it in the club that night. Perry hurries to tell Kevin the news, and the friends reconcile.