In Gus Van Sant's new film Milk, which opens Wednesday, Alison Pill plays Anne Kronenberg, the brassy lesbian hired by gay rights activist Harvey Milk to take charge of his fourth, ultimately successful, campaign for city supervisor. The 23-year-old's performance was cited by the Times as one of five to watch out for this year: "Women are rare in this movie, but as the campaign gathers momentum, this one holds the screen like a channel......