When Gilmore Girls star Milo Ventimiglia returns to Stars Hollow later this season, his character, Jess, may have a surprise waiting for him: his mother. Series creator Amy Sherman-Palladino tells me she's "toying" with the idea of introducing Jess's never-before-seen mom (and Luke's sister) during February sweeps. "That would be a nice chance to get a really cool actress," Sherman-Palladino says. "Someone a little loony." Paging Sean Young...