To hear it from The Reeler‘s Stu VanAirsdale, the highlight of the Robert Altman tribute was Julianne Moore‘s recollection about beiong cast in Short Cuts, and being told that the role required lower-level nudity and Moore telling Altman that “I really was a redhead.”
I prefer the Paul Thomas Anderson anecdote passed along in David Carr’s N.Y. Times story, to wit: “On the set of A Prairie Home Companion, Altman would listen carefully to the suggestions of others and then say, ‘Let’s not do that.'”