To my knowledge Priscilla’s first ever professional job was in the movie Annie. And more precisely, the TV movie version from year 1999 and its 2001 DVD release, which Priscilla dubbed in French, both the singing and the dialogue. The movie had a pretty impressive cast: Kathy Bates and Victor Garber, Sarah Hyland and Lalaine (from Lizzie McGuire). The part of Annie is played by Alicia Morton, who has made a few small movies since.
Priscilla’s part in the movie was briefly mentioned in a 2002 magazine article
She enjoyed her role as the French “Annie” in the musical, even though she found it “super hard”. (Télé Câble Satellite Hebdo, 2002)