In 2003, she was in Los Angeles to audition for a role in the film Agent Cody Banks 2: Destination London, a fact that she revealed at the UK premiere of the film on 24 March 2004 in London.
She got the role and three days after leaving S Club, she began filming.
In early November 2005, she made her acting comeback in the BBC's Blessed, an eight-part sitcom.
In Blessed, she played a minor role, appearing as a member of a fake girl band in two episodes.
In March 2004, Spearritt successfully auditioned for a minor role in the horror film Seed of Chucky, which was seen by some as an attempt to distance herself from her squeaky clean S Club image.