 The film was inspired by the attention a male colleague at Granada received when his childcare arrangements broke down and he had to bring his child into work.Into the 2000s, Sullivan worked freelance on many television and film projects, including directing the final episode of "Cold Feet" for Granada, and the one-off comedy drama "Catwalk Dogs" for Shed Productions.In 2005, having worked on the movie Flushed Away, Sullivan was hired by DreamWorks to write an initial script draft for "Shrek 4",