So Kat Dennings is a dryer, more deadpan, slightly more opaque version of Emma Stone? Or is Emma a brassier, more mainstreamy, young-Eileen Brennan-without-the-deep-voice version of Kat? Dennings is obviously the erotic raison d’etre behind Daydream Nation (Anchor Bay, 5.6). On the same day her costarring performance in Fucking Thor will also be assessed.