The Kurupt FM boys have returned for a feature-length film, People Just Do Nothing: Big In Japan, which sees them earn success after their track features on a Japanese game show. The movie is achingly funny, with the characters truly out of their comfort zone.

RELATED: The 5 Best (& 5 Worst) Mockumentaries

And for fans of the original People Just Do Nothing series, there are plenty of callbacks and references to moments across the Brentford boys' five-season run, from Chabuddy's passport to Steves' farming activities.

Chabuddy G Using His Brother's Passport

Chabuddy G at his computer in People Just Do Nothing

One of the movie's funniest scenes is when the Kurupt group makes their way through airport security. Chabuddy arrives with a ridiculous combover, prompting Steves to ask if he's done anything differently with his hair. It's not until Chabuddy has his passport examined that the audience realizes he is trying to look more like his brother's passport photo.

"I actually came here in '93 with nothing but £5 and my brother's passport -- my passport," he reveals to Miche in an early episode of the series. He states the same again in the movie, and it's such a good line that fans likely won't mind hearing it again. Asim Chaudhry revealed on the Off Menu Podcast that this idea was inspired by his father, who used to make similar boasts.

Beats Acting Like Craig Is His Son

Craig and Beats sitting in the back of the car - People Just Do Nothing

Beats' partner, Roche, one of the only reasonable and mature characters in the series, has an adult son: the lazy, video-game-obsessed Craig. Beats repeatedly attempts to form a father-son relationship with Craig. Fans will recall their fishing trip in season two, during which they decide to go to "supermarché" and eventually bond over their love of junk food and pyrotechnics.

At the start of the movie, Craig is Beats' supervisor at the bowling alley where they both work. He doesn't seem to have warmed to his surrogate father since the series ended, perhaps because Beats uses the microphone intended for making announcements to talk like an MC. Beats hasn't given up on calling him "son," though. This is especially entertaining because Craig is more mature, taller, and Beats' workplace superior.

Decoy Is Clearly Angel's Biological Father

Side profile of Decoy looking tough in People Just Do Nothing

Early on in the series, it's heavily implied that Decoy is Angel's biological father, not Grindah. Miche justifies her daughter's resemblance to Decoy by saying that she wore a lot of fake tan during her pregnancy, an offensively absurd suggestion that she repeats in the movie to the boys' new manager, Taka.

RELATED: 8 Best Quotes From The BBC's This Country

Decoy being Angel's father goes a long way to explaining why he, the most sensible and thoughtful member of the group, continues to hang around with Grindah, with whom he seems to have very little in common. It is the only way he can see his daughter and make sure that she and Miche are okay. Decoy is also the only one to say goodbye to Miche and Angel at the airport when they leave for Japan.

Steves Growing Weed

Steves Nan and Steves hug with arms up in People Just Do Nothing

The runt of the Kurupt clan is the slow-witted Steves, one of People Just Do Nothing's best characters, who is often maligned by the others. Steves is played by Steve Stamp, who co-wrote the series and the movie. In the series, a running plot point is that he grows marijuana in the bathtub of his late grandmother's tower block flat, the living room of which is where they host the radio show.

In the movie, Steves strikes up a friendship with Miki, the group's Japanese translator, and tells her that he is a farmer, and while this is technically the truth, it may not be correct for her to assume that he, therefore, works hard.

"Heart Monitor Riddem" Song

Beats and Grindah in Heart Monitor Riddim video from People Just Do Nothing

The inciting incident of the film is that one of Kurupt FM's two tracks, "Heart Monitor Riddem," has gained notoriety in Japan after featuring on a game show. This instigates the boys' trip to the country and therefore the events of the movie. The song is notable in the series, too. The group even makes a music video, which involves trespassing in a hospital and some amateur special effects from director Chabuddy G.

The lyrics of the song's chorus are "Bang! Lyrical blow to the jaw," and prompts their new Japanese manager to change their name to the rather questionable "Bang Boys," to their chagrin and confusion. Although the song is comical, it is incredibly catchy.

Acting Like They Own Brentford

Cast of People Just Do Nothing with Kurupt FM Brentford FC kit on

The series regularly featured Beats and Grindah doing bits to the camera on the roof of the tower block. They survey the West London town and refer to it as theirs. "This used to be all mine," Grindah tells the audience early on in the movie when he returns from his new home in Essex.

It's a delusional outlook that's similar to David Brent from The Office, which was a big influence on People Just Do Nothing. Grindah also boasts that Kurupt was the number one pirate radio station in Brentford, cueing Beats to note that they were the only station. Grindah's big ego and sense of self-importance are put to the test in the new movie, as he realizes that he is nothing without his boys.

Chabuddy's "Complete Tech Heads" Van

Chabuddy G standing in front of his red van in People Just Do Nothing

In one of the series' most memorable Chabuddy G scenes, the sordid businessman who lives out of his red van has launched a new tech company called "Complete Tech Heads." Alas, because of his pronunciation, it sounds like he's saying something completely different.

In the movie, Chabuddy sacrifices his van/home to pay for his flight to Japan, but not before fans get another glimpse of the same filthy vehicle that contains all his worldly possessions, including a poo bucket, and the Complete Tech Heads logo still present on the back doors.

"Studio!"

Beats, Decoy, Grindah and Steves in the studio in People Just Do Nothing

In another of the curve balls that Taka throws the boys, a day in the studio turns out to be a day in a dance studio -- not a recording studio. Before this crushing realization, though, Grindah, Beats, and Steves express their excitement by yelling "Studio, studio!" on their way there. Even Miche joins in, to Grindah's annoyance.

RELATED: 10 Best British Sitcoms Of The Past Decade

Fans will remember the familiar cries of "Studio!" from the series. When the boys go to record their instant classic, "Heart Monitor Riddem," they all excitedly yell the word before Beats declares that "'going studio' sounds good." They are like children whose parents are taking them on a day out and it's endearing and very funny.

Miche Wants To Be Famous

Miche from People Just Nothing smiling at the camera

In the movie, Miche thought that she and her daughter Angel would be coming to Japan too. But when she gets left behind, she insists on making it look like she is there -- after all, she has already told all of her Instagram fans. She tricks out Roche's living room and photoshops herself into pictures of landmarks.

Throughout the series, Miche has high hopes of stardom -- whether by way of Grindah's success, her daughter, or her modeling. She puts major pressure on Angel, saying that her "hopes and dreams for Angel are that she becomes really successful, makes loads of money, and we can just live in a big mansion in LA and watch her rise to fame." At the end of the film, though, Miche gives an almost profound piece to the camera about living in the moment, suggesting a change in her attitude towards fame.

Ipswich

The gang standing in front of Chabuddy's van going to Ipswich in People Just Do Nothing.

In one of Beats and Grindah's pieces to the camera during the movie, Beats proclaims, "You gotta go where the music takes you, like Brentford, Ipswich, and now Japan." Not only is this hilarious, as it groups these two nondescript British locations with a gigantic global metropolis, but it's also a reference to the original series.

The boys' one show outside of Brentford is at a club in Ipswich, organized by Chabuddy. This also hints at the characters' unawareness of geography -- for example, Grindah calls it "the city of Japan," as he surveys Tokyo from the hotel room.

NEXT: 10 Best TV Series & Movies Set In Japan