"Someone just broke into my house," the 50-year-old actress can be heard saying.
"I think it's a man... I'm locked in the closet right now."
As the call goes on, Sandra Bullock becomes more panicked.
"He's banging on the doors," she says, sobbing, before confirming that the man is knocking on the bedroom door.
"Are they close?" she asks about the police - who, according to the call, take over 13 minutes to get to her home.
Breathing heavily, Sandra then reveals that she's unarmed and that the doors downstairs are locked, leaving her uncertain how he got into her home.
The 911 call, which was played at a court hearing, clearly shows how shaken and distressed Sandra was when she discovered her alleged stalker, Joshua James Corbett, inside her hime in Bel-Air.
Corbett is facing 19 felony charges - including stalking, residential burglary and possession of a machine gun - after he allegedly broke into the Gravity star’s home through a locked door.
According to police, the man was clutching a black notebook with a two-page letter to Bullock and magazine photos of the actress when he was arrested.
“He said, ’I’m sorry. I love you Sandy’, ” Officer Jose Bermudez of Los Angeles police told the court.
Corbett has entered a plea of ‘not guilty’.