ET is first to confirm that police responded to a trespassing call last month on the property of 'Spider-Man' actress Kirsten Dunst.

Sources tell ET exclusively that it is not the first time the trespasser has showed up at Dunst's canyon home in the Hollywood Hills.

The actress, who is a neighbor of "American Idol" host Ryan Seacrest, was not at home when the trespasser was on her property, said the sources, who added that security had also been stepped up at the home of her mother.

Dunst's mother lives in the Toluca Lake area north of Hollywood in the same neighborhood as Jennifer Love Hewitt and Hilary Duff, who experienced a stalker drama in 2006.