With two superstar parents and a lifetime spent travelling in Hollywood circles, you'd think Kate Hudson would be pretty up on her brethren in the acting community (especially those actresses gracing the cover of just about every other glossy on the newsstand). But apparently the name Katherine Heigl doesn't ring a bell with the former Mrs. Robinson. In an interview with UK Elle, the no-longer-single blondie allegedly feigned ignorance when Heigl's name was brought up, asking: "Who is she?...