Unlikely and totally endearing duo Keira Knightley and Steve Carell star in this drama that,
according to EW's Lisa Schwarzbaum, ''ponders human behavior in the face of impending oblivion with an idiosyncratic, explosion-free bittersweetness I haven't seen since well, since Don McKellar's excellent, bittersweet 1999 end-of-the-world reverie,
Last Night.''