Hark! Is it really the Tom Cruise we know and love and have missed so dearly?

If the trailer for next summer's action comedy 'Knight & Day' is any indication, Tom Cruise -- the immensely likable, butt-kicking movie star with the killer smile and the ability to make a zillion bucks for a studio -- is back. Tom looks to be in tip-top fighting shape, gets out a few funny zingers and even flashes those pearly whites a few times ... and the movie itself looks pretty great, too. Might 'Knight & Day' be the mega-hit that will bring Tom back to the land of super-bankable stars? Watch the trailer and decide.