The actress, who played Hermione Granger for years, is appearing in the upcoming thriller "Regression" opposite David Thewlis, who played Remus Lupin in five "Harry Potter" movies, reported Us Magazine.
Watson, 25, stars in the Alejandro Amenabar-helmed movie as a young woman named Angela Gray. Angela goes to the local Minnesota police to accuse her father, John Gray (David Dencik), of sexual abuse.
Thewlis, 52, makes his entrance as a psychologist named Dr Kenneth Raines, who treats John. Ethan Hawke is also featured in "Regression" as a detective named Bruce Kenner, who is working on the case.