A man arrested at Sandra Bullock's Los Angeles home allegedly was inside for more than an hour before police were called early Sunday. Joshua James Corbett, 39, also owned an illegal machine gun, although he did not have it with him when he allegedly broke into the actress's home. Corbett, from Montrose, California, was charged Tuesday with felony counts of residential burglary, stalking and possession of a machine gun. Corbett entered a not guilty plea during a brief court appearance Tuesday afternoon. The judge set his bond at $185,000. Corbett allegedly climbed a chain-link fence topped with barbed wire to enter Bullock's West Los Angeles property and enter her home at about 5 a.m. Sunday. Bullock was home at the time, but police have not said whether her young son also was there. Police were not called to the home until 6:30 a.m., suggesting that the alleged burglar was inside for more than an hour while the actress slept.