When he was interviewed about the film, Rik Mayall said that he considered the film as a 25th anniversary film, as production on "Guest House Paradiso" commenced about 25 years after Rik Mayall and Adrian Edmondson first met each other at university, which led them to becoming real life best friends and a comedy duo.
The scene in which Ritchie yanks Eddie's head back with a hook up his nose was shot with the action in reverse, then played backwards in the final cut. To achieve this, Adrian Edmondson learned to phonetically pronounce the phrase "Excuse me one moment" backwards.
In this movie Vincent Cassel plays a man about to marry "the most famous Italian movie actress in the world". In reality, Cassel is married to Monica Bellucci, arguably the most famous Italian movie actress in the world.
In the original promotional campaign for Guest House Paradiso's cinema release Rik Mayall and Adrian Edmondson explicitly stated that it was "not Bottom" (hence the name differences and other inconsistencies with series in the movie) but they also said that they have pretty much always played the same characters for years (The Young Ones (1982), Filthy Rich & Catflap (1987), and Bottom (1991)) and this was just a new set. Perhaps the films not-so-stratospheric box office success caused the studio to add "The Bottom Movie" on its video release.
Rik Mayall was originally going to co-direct, but he declined because he was still recovering from his quad bike accident. Rik and Adrain Edmondson wrote the first draft of the script whilst Rik was in hospital.
In the making of the film documentary, Ade Edmondson stated he enjoyed making the film and that would he would like to do another film. Unfortunately a "Guest House Paradiso" sequel never happened. After their final live stage show "Bottom Live 2003: Weapons Grade Y-Fronts Tour". Rik and Adrian decided to move on from "Bottom" and Rik Mayll passed away on 9th June 2014 .
Those paying close attention would have noticed that the neighboring power station is a subtle rude joke. The smoking tower and the two domes below are amusingly shaped to resemble a penis and testicles.
The idea for the film came about, when Rik Mayall and Adrian Edmondson were staying at hotels, when they went on tour across the UK, performing live stage shows of their hit TV sitcom "Bottom", which the film is a spin-off of and they thought it would be funny if Richie and Eddie ran a hotel.
Rik Mayall and Adrian Edmondson changed the surnames of their characters for the film. Edmondson's character Eddie's surname was changed from Hitler to Ndingombaba and Rik's character Richie's surname was changed from Richards to Twat, which became a recurring gag throughout the film, as Richard claims his surname is pronounced "Thwaite", when it is spelt Twat.
The sub-plot where the guests eat the radioactive fish, get sick and projectile vomit everywhere is reference to Bottom Live: Hooligan's Island in which Richie eats a bad fish that causes him to projectile vomit.
When Eddie brings Gino to Gina's hotel room, Eddie asks Gino to mind his language and states that Richie and himself are trying to keep the film PG rated, when Gino calls him a "Dead Motherf*****". That was a joke that was written to poke fun at the film's 15 rating in the United Kingdom. The film is given the 15 certificate for it's comic violence, profanity, sexual content and gross humor. The "Bottom" TV show, which the film is a spin-off, was given the 15 certificate when it was released on VHS and DVD.
Rik Mayall stated in the behind the scenes documentary that in the back-story of the little crawl-ways hidden between the walls of the hotel were designed by Richie's great Uncle Gervais and that Richie could crawl through, open little doorways and having a peep at the guests in the hotel that were getting sexy.
For the sequence which Richie is swinging Eddie through the air with the meathooks in his nose and throws Eddie through the kitchen window was achieved with Adrian Edmondson lying on top of a rotating board and dummy arms of Rik Mayall with the meathooks was used, which Edmondson put in his nostrils during filming, to give the illusion that Mayall is swinging Edmondson through the air.
When they filmed the scene which Eddie asks Richie to remove his hand from his groin, when Mr. Nice takes the security videotape. Adrian Edmondson made Rik Mayall crack up laughing when he broke character and whispers to Rik Mayall "I like it. Put it back on."
Bill Nighy would be offered the role of the Tenth Doctor Who in the revived series of the BBC science fiction series "Doctor Who", but turned it down and David Tennant was cast. Bill Nighy, Kate Ashfield and Sophia Myles have worked with David Tennant and Sophia Myles was David Tennant's former girlfriend and had worked with him in "Foyle's War" and again in "Doctor Who". Kate Ashfield starred opposite David Tennant in "Secret Smile" and Bill Nighy worked with David Tennant in "Glorious 39" and "Page Eight".
In the scene, where Gino arrives at the hotel and attacks Eddie and brings him to Gina's hotel room. Eddie asks Gino to mind his language and states that the film is PG rated. The film received the 15 certificate in the UK.
For the sequence which Richie accidentally gets Eddie's fishing hook caught in Mr. Nice's nipple ring, trying to recover the security videotape. Simon Pegg wore A prosthetic torso and nipple, which was rigged up to wires, which to live him up off the bed, which was pulled by special effects crew. To give the illusion that Richie and Eddie are lifting Mr. Nice off the bed into air, with the fish hook caught in his nipple ring.
When the scene which Mrs. Nice and the kids catches Richie and Eddie getting dressed outside Gina Carbonara's room. In one take, Adrian Edmondson accidentally knocked Rik Mayall on the side of the head.