The 18-year-old fashion student will make her debut in X-rated movies by losing her virginity on film.
'It's a really cheap shot,' a representative for Katie tells the New York Post.
Katee's manager, Shy Love - a blue movie veteran - claims the fledgling porn-star from Illinois changed her name in honour of the Dawson's Creek star.
'Katee is using the name as a tribute to Katie, who has always portrayed an innocence in everything she's done,' he said.
Will Katie take legal action?
A spokeswoman for her actor husband Tom Cruise says: 'Obviously, Tom would support Katie in anything she decides to do about it.'
