I used to sit through the entire Academy Awards, from the red-carpet arrivals through the last acceptance speech. Then one year I thought, Who am I kidding? I only care about the clothes. Now, I skip the awards show itself and head straight for the press and the post-show fashion wrap-ups. There are usually a few outstanding vintage gowns on the red carpet. This year, Ann Hathaway’s ruby-colored Valentino got a lot of attention, but since it was from 2002, I’m not sure it really qualifies as vintage. She called it “archival.” Whatever it’s called, it’s gorgeous. Marisa Tomei wore true vintage, showing up in 1950’s Charles James couture. She’s…