It will be Fisher's first TV role since How Do You Solve...?
Sound of Music star Connie Fisher is to make her TV drama debut in a new film for ITV1.
The 24-year-old, who won the BBC's How Do You Solve A Problem Like Maria?, will play an Elvis Presley-obsessed parking warden in Caught in a Trap.
Fisher, who went on to play Maria Von Trapp on stage, said she was "thrilled" to have been cast in the drama.
Shooting has started on the film, which also stars Jim Carter, Geraldine James and ex-EastEnders actor Joe Absolom.
Fisher plays Gemma Perkins, who lives with her father and overbearing step-mother and has a boring and low paid job emptying car park meters.
But her life takes a dramatic turn when she starts dipping into cash from the parking meters to fund her obsession with Elvis Presley, giving her a thrill she has never felt before.
Producer Jill Green said: "Connie has more than proved herself as an actress in her role as Maria in The Sound of Music. We thought she would be perfect for the role of Gemma Perkins in Caught in a Trap.
"Connie has a vulnerability about her and an interesting face which betrays a range of emotions which we require for this role. She has an accessibility, and is a person we can all relate to."