The woman accused of stalking Sandra Bullock has pleaded not guilty on two felony counts.

Marcia Diane Valentine appeared in a Southern California courtroom, on charges of aggravated felony assault and stalking after she allegedly tried to run down Bullock�s husband, Monster Garage host Jesse James.

Prior to this incident Valentine had trespassed on the Bullock�s property on two separate occasions, resulting in the Miss Congeniality star filing for a restraining order.

The next hearing is scheduled for July 10.