Malcolm co-starred in 2010 feature film The Hopes and Dreams of Gazza Snell, playing mother to a family obsessed with go-karting and motorsports. She has also had small roles in movies Absent Without Leave directed by John Laing, The Last Tattoo directed by John Reid, Gaylene Preston's Perfect Strangers, and Christine Jeffs' Sylvia. She had a minor role as Morwen in the second film of the Lord of the Rings trilogy.