Principal photography has begun in Montreal on "The Moth Diaries," a gothic horror feature film written and directed by Mary Harron.

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Based on the cult novel of the same name written by Rachel Klein, the movie stars Lily Cole, Sarah Gadon, Sarah Bolger and Scott Speedman.

Production is to continue through Oct. 8, Mediabiz International said Thursday.

"At Brangwyn, an elite girls boarding school, Rebecca, a young girl haunted by her father's suicide, begins her junior year hoping for a fresh start. From the outset, her friendship with sunny, innocent Lucy is shattered by the arrival of Ernessa, a mysterious, dark and beautiful girl from Europe. As her friendship with Lucy slips away, Rebecca develops a crush on her handsome English professor, Mr. Davies, who is teaching a course on supernatural fiction," a synopsis of the film said.