The writer/director P.J. Hogan wanted to use the music of ABBA in the film. At first, permission for the music to be used was denied. When the director promised to fly to Europe to plead his case to the founders of the band, permission was granted, as long as the band received a percentage of the film profits. The film turned out to be a big international hit, and thus helped inspire the very successful Broadway show which became the movie Mamma Mia! (2008).
The name of Muriel's fictional fiancée, Tim Simms, is has resonances (perhaps unintentional or even subconscious) with the names of two Australian food items - Tim Tams (a chocolate-coated biscuit, or cookie in US English) and Dim Sims (a pseudo-Asian meat dish).