Last night Maggie Gyllenhaal was on Letterman, ostensibly promoting the Dark Knight, which comes out tomorrow. But Dave didn't really let Maggs say much about her performance along Heath Ledger and Christian Bale; he was more fixated on her Agent Provocateur underwear ads. In the clip above, Dave coos over how great she looks in the ads, which were created a mere six months after she gave birth to baby Ramona. "Mission accomplished, nice going," Dave beams, to which Maggie responds pithily, "I am an actress, too." Clip above.