Molly Sullivan takes the big screen.

Johannah Newmarch When Calls the Heart
Credit: Crown Media

Hallmark Channel sweetheart Johannah Newmarch is headed for the big screen. Only this time, Newmarch, who has appeared as Molly Sullivan in When Calls the Heart since 2014 and Sally in several of the Garage Sale Mystery series is working on something you won't find on Hallmark.

The fiery redhead is set to star as the evil stepmother in A Cinderella Story: Christmas Wish, a contemporary musical from Warner Bros', and the fifth installment in the teen film franchise.

The first Christmas-themed movie in the "Cinderella Story" franchise, A Cinderella Story: Christmas Wish tells the story of modern-day fairytale heroine, Kat Decker (Laura Marano of Disney Channel's Austin & Ally fame), a singing elf at a Christmas store who dreams of becoming a singer-songwriter. Her love interest—the handsome new Santa at the tree lot—is played by Runaways actor Gregg Sulkin. The film has reportedly already begun filming in Vancouver, British Columbia, Canada. There's no word yet on a release date.

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"For 15 years, the ‘A Cinderella Story' franchise has enchanted audiences with its emotional storylines, engaging music, and talented young actresses in the key lead role," Mary Ellen Thomas, Warner Bros. Home Entertainment Vice President, Family & Animation Marketing, said in a news release. "We know that fans of ‘A Cinderella Story' will love this heart-warming holiday tale filled with music and magic."

We have no doubt Newmarch is going to make a flawless fairytale villain!