Katie Holmes is furious after learning a teenage virgin is launching an adult movie career under the name Katee Holmes.
The 18-year-old fashion student will begin her career in X-rated movies by losing her virginity on film.
A representative for Katie told the New York Post newspaper: "It's a really cheap shot".
Katee's manager, Shy Love - a blue movie veteran - claims the fledgling porn-star from Illinois changed her name in "tribute" to the 'Dawson's Creek' actress' innocence.
He said: "Katee is using the name as a tribute to Katie, who has always portrayed an innocence in everything she's done, beginning with 'Dawson's Creek'."
Katee - who looks nothing like the brunette actress with blonde hair and blue eyes - says she has no regrets about her decision.
She said: "I know it's pretty extreme to lose my virginity on camera, but I like the fulfilment and excitement I get from watching porn, so I figured a movie was the best place for me to lose it.