Title: London Town (1946 film)
Content:  So much was spent on production that the film needed to perform better than possible just to break even. However, dismissed by critics (who described it as "tacky" and "tasteless") and ignored by audiences, it was a legendary flop. In hindsight, however, especially for nostalgia fans, many of its kitschy aspects make it fascinating, and film historians consider it an interesting record of the times in which it takes place. Following Britain's victory in the war, it can be seen as a tribute to London and its residents, and as a celebration of popular Cockney culture, especially its music hall traditions. It should also be pointed out that according to trade papers, the film was a "notable box office attraction" at British cinemas in 1946. According to Kinematograph Weekly the 'biggest winner' at the box office in 
Title: Culture of London
Content:  London has been used frequently both as a filming location and as a film setting. These have ranged from historical recreations of the Victorian London of Charles Dickens and Sherlock Holmes, to the romantic comedies of Bridget Jones's Diary and Notting Hill, by way of crime films, spy thrillers, science fiction and the "swinging London" films of the 1960s. Because of the dominant role played by the city in the British media, many British films are set in London. It has also been used many times in American films, and often recreated on a Hollywood studio backlot.
Title: London in film
Content:  With new developments in music, cinema and fashion, London found itself the centre of youth culture in the 1960s. The image of "swinging London", partly a creation of Time magazine, helped to fuel a production boom in the British film industry throughout the decade. The Beatles made memorable use of locations in the city in A Hard Day's Night (1964) (#1 in U.S.), and a huge number of other London-set films followed. These included The Pumpkin Eater, The Knack ...and How to Get It, Darling, Arabesque, Kaleidoscope, Georgy Girl, Morgan!, Alfie, Blowup, I'll Never Forget What's'isname, Casino Royale, Poor Cow, Up the Junction, Bedazzled, To Sir, with Love, The Jokers, Otley, Wonderwall, Smashing Time, Salt and Pepper and The Italian Job.
Title: London in film
Content:  Double (1958), Battle of Britain (1969), Hanover Street (1979), Hope and Glory (1987), Shining Through (1992) and The End of the Affair (1999), as well as some low-budget Italian-made war films like Stukas Over London (1970) and From Hell to Victory (1979). The 1950s has been recreated in several films including 84 Charing Cross Road (1987) and Shadowlands (1993). The 1960s has proved particularly popular with film makers in recent years, especially for crime films like Buster (1988), Scandal (1989), The Krays (1990), Honest (2000) and Gangster No. 1 (2000). Withnail and I (1987) economically recreated the Camden Town area in the 1960s.
Title: London in film
Content:  London has been used frequently both as a filming location and as a film setting. These have ranged from historical recreations of the Victorian London of Charles Dickens and Sherlock Holmes, to the romantic comedies of Bridget Jones's Diary and Notting Hill, by way of crime films, spy thrillers, science fiction and the "swinging London" films of the 1960s. Because of the dominant role played by the city in the British media, the number of British films set in London is huge. It has also been used many times in American films, and often recreated on a Hollywood studio backlot.
Title: London (1926 film)
Content:  On its release, London received generally good, albeit not outstanding, reviews. The photography and acting was praised, although the storyline was deemed unconvincing and over-reliant on coincidence. The film ran in cinemas through the first half of 1927 but then disappeared from view, and no evidence can be found that it was ever distributed again after its first run. The British Film Institute does not hold a print in the BFI National Archive, and currently classes the film as "missing, believed lost". London is included on the BFI's "75 Most Wanted" list of missing British feature films.
Title: London
Content:  Peter Ackroyd, author of a "biography" of London, and Iain Sinclair, who writes in the genre of psychogeography.  London has played a significant role in the film industry. Major studios within or bordering London include Twickenham, Ealing, Shepperton, Pinewood, Elstree and Borehamwood, and a special effects and post-production community centred in Soho. Working Title Films has its headquarters in London. London has been the setting for films including Oliver Twist (1948), Scrooge (1951), Peter Pan (1953), The 101 Dalmatians (1961), My Fair Lady (1964), Mary Poppins (1964), Blowup (1966), The Long Good Friday (1980), The Great Mouse Detective (1986), Notting Hill (1999), Love Actually (2003), 
Title: London in film
Content:  Cliff Richard was a film star with three successful musical comedies in the early 1960s. The first of these, The Young Ones (1961), was set in London. Cliff, The Shadows, and others need money to save their youth club, so they set up a pirate radio station to generate publicity for the show. Although Cliff's second hit, Summer Holiday (1963), mostly took place while driving across Europe, it prominently featured a red London AEC RT bus. The success of some of these 1960s films helped to make up for London Town, Britain's first Technicolor musical, which was a high-profile flop in 1946. Mary Poppins (1964) was a critical and popular success, winning multiple Oscars for its 
Title: London
Content:  For Vendetta (2005), Sweeney Todd: The Demon Barber of Fleet Street (2008) and The King's Speech (2010). Notable actors and filmmakers from London include; Charlie Chaplin, Alfred Hitchcock, Michael Caine, Helen Mirren, Gary Oldman, Christopher Nolan, Jude Law, Benedict Cumberbatch, Tom Hardy, Keira Knightley and Daniel Day-Lewis. Since 2008, the British Academy Film Awards have taken place at the Royal Opera House. London is a major centre for television production, with studios including BBC Television Centre, The Fountain Studios and The London Studios. Many television programmes have been set in London, including the popular television soap opera EastEnders, broadcast by the BBC since 1985.
Title: London in film
Content:  Sixty Glorious Years (1938), The Mudlark (1950), The Wrong Box (1966), The Assassination Bureau (1968), The First Great Train Robbery (1978), Topsy-Turvy (1999), An Ideal Husband (1999), Shanghai Knights (2003), the 1956 version and 2004 version of Around the World in Eighty Days, and the black-and-white film The Elephant Man (1980), based on the life of Joseph Merrick. Other British cities, such as Edinburgh, or locations in other countries, are now often used for period films instead of filming in London itself. From Hell (2001), The League of Extraordinary Gentlemen (2003) and Roman Polanski's 2005 film of Oliver Twist all recreated Victorian London in Prague in the Czech Republic.

Question: what makes the film so popular back in london?
Answer: Cambridge.