Sharon Stone seeks additional time with son

In an April filing with the San Francisco County Superior Court, Sharon Stone moved to alter the child custody agreement currently in place with ex-husband Phil Bronstein as it pertains to their 8-year-old son Roan Joseph. According to the document, obtained by Extra, Phil was awarded primary physical custody of Roan in October 2007 -- an arrangement the 50-year-old actress now seeks to modify.

In addition to Roan, Sharon is mom to Laird Vonne, 3, and Quinn Kelly, 2.

Source: Extra; Photo by Flynet.