Robert Redford will be in Baltimore on Friday, June 25 to deliver special remarks at the opening of the Half-Century Summit of Americans for the Arts. While preparing to interview him about his experience as an arts advocate (the piece will run in Sunday's A&E section), I couldn't help thinking about his influence as an actor. For generations of moviegoers, Robert Redford's image crystallized when he played WASP demigod Hubbell Gardiner in "The Way We Were," back in 1973. Hubbell was a talented, sensitive writer for whom "everything comes too easy." He was a masculine figure so casually, naturally attractive that his true love (Barbra Streisand) called him "America the Beautiful." And he was an apolitical humanist who argued, in the dark McCarthy days, that "people are more important" than "principles." Of course, Hubbell was not Redford writ large; he was a character limned with superb judgment by an actor in peak form.