The small gold badges which Stan and Ollie wear in their lapels for much of the film relate to the Grand Order of Water Rats, a British trust through which members of the entertainment industry make donations to deserving people and charities. Stan and Ollie were Water Rats 465 and 466 respectively.

A Laurel & Hardy museum, which contains many artifacts of Stan Laurel's career, is located in his birthplace, Ulverston, Cumbria. Laurel occasionally dropped by to visit his parents. When he and Oliver Hardy visited the town as part of their 1953 UK tour, a huge crowd welcomed them. A bronze statue of Laurel & Hardy is outside the town hall.

Dedicated to the memory of Lois Laurel, Stan Laurel's daughter, who died in 2017.

When Oliver Hardy was finally free of his contract with Hal Roach Studios, he was finally able to sign on to one or two picture deals alongside Stan Laurel for other film studios. Most fans of the duo believe that those films, with the possible exception of The Flying Deuces (1939), marked a decline in quality from the pair. The scripts were often bad, and they were starting to show their age. Newer double acts, such as Abbot & Costello, and Bob Hope, Bing Crosby, and Dorothy Lamour started to become popular. Laurel and Hardy continued to make films, at a slower rate, until 1945. Their last film, Utopia (1951), was poorly received, killing their hopes of a comeback.

Hal Roach outlived both his stars by quite a bit when he died in November 1992, aged 100. He was only four days older than Oliver Hardy, and 18 months younger than Stan Laurel.

Steve Coogan and John C. Reilly were the first choices of director Jon S. Baird and screenwriter Jeff Pope for the roles of Laurel and Hardy.

The film was released nationwide in the United States on Oliver Hardy's birthday.

The "Elephant movie" that caused so much tension between Stan Laurel and Oliver Hardy was officially titled Zenobia (1939). Hardy co-starred with Harry Langdon, who was briefly a major silent comedy film star. The press considered it the break up of Laurel & Hardy. Langdon & Hardy received much press, but Roach never intended for them to be a permanent team.

After the Second World War, Laurel & Hardy opened the Romney, Hythe and Dymchurch railway in Kent. It was the smallest passenger train in the world.

Stan Laurel was a native of Ulverston, Cumbria, in northwest England. For several years, the Ulverston Brewing Company of Cumbria have been making a selection of bottled and draught beers with Laurel and Hardy themed names, such as Lonesome Pine and Laughing Gravy.

The opening explanation title cards state that many of their films were dubbed into other languages for foreign countries. While their sound films from 1932 forward were dubbed, between 1930 and 1932 Stan and Babe learned to perform the scripts for several films phonetically in other languages, and actors who spoke those languages filled in the other parts. Multiple language versions of films like Blotto (1930) and Chickens Come Home- (1931) survive, and are available on DVD and digital.

Steve Coogan wore blue contacts to play Stan Laurel.

Jeff Pope has described Stan Laurel and Oliver Hardy as his heroes.

Irish author John Connolly, known for his horror, mystery and fantasy work, wrote "he: A Novel" which is a touching, quasi-fictional biography of Stan Laurel, with Babe, as Ollie was known. In one chapter, Connolly writes about the Boys' return to the U.K., the subject of this film. At one stop, the Boys were serenaded by several hundred fans whistling their theme song.

In a major coup for Faye Ward and her relatively new Fable Pictures, the rights to the work of Laurel and Hardy have been licensed by Larry Harmon Pictures Corporation.

Laurel and Hardy arrived in Ireland at the start of the Britain and Ireland tour in Cobh, Co. Cork, to a huge welcome.

Bernard Delfont was from a show business family. One of his brothers was Lew Grade, who started ATV Music Corp, which bought Northern Songs, The Beatles' music publishing company. Grade (later Lord Grade) started ITC, responsible for classic television shows including Thunderbirds (1965), The Prisoner (1967), Jesus of Nazareth (1977), and The Muppet Show (1976). Grade also produced many feature films, such as Capricorn One (1977), The Boys from Brazil (1978), Raise the Titanic (1980), On Golden Pond (1981), and Sophie's Choice (1982). Delfont was also the uncle of Michael Grade, who would go on to be the Controller of BBC One, then CEO of Channel 4 in the UK.

Stan Laurel & Oliver Hardy also visited the Republic of Ireland on their final tour. They were warmly greeted by hundreds of people.

Steve Coogan and John C. Reilly are both Oscar nominees.

Steve Coogan was born almost eight months after Stan Laurel's death.

The opening scene is a five minute long walk-and-talk.