tr.im Late Show with David Letterman Airdate: Wednesday, February 17 Ewan McGregor (The Ghost Writer) Abby Elliott (Saturday Night Live) Mumford & Sons (CD, “Sigh No More”) Late Show with David Letterman 02/17/10 Ewan McGregor Abby Elliott Mumford & Sons saturday night live sigh no more “the ghost writer” the ghost writer “part 1″ “part 2″ “part 3″ “part 4″ “part 5″ “part 6″ part 01 HD HQ New complete full