Walter Hill thoughtfully regards the pummeling power of weaponry at work.

Like the amped up comeback tour of two rockers who had their heyday sometime in the mid-'80s, Sylvester Stallone and director Walter Hill (48 HRS., The Warriors) join forces for a hard-hitting exercise in beefy, brainless fun with the New Orleans-set actioner Bullet to the Head.

To claim the dialogue is written to comfort the narratively challenged would be mere quibbling, as the picture's chief pleasure lies in its store of funny lines, which Stallone tosses off with genuine brio.

The X-factors tend to be the script and the performances, and those elements largely betray him in Bullet To The Head, which is a perfunctory exercise whenever Hill isn't busying himself with gun battles, ax fights, and other mano-a-mano confrontations. He can only do so much.

It's junk, and it's excessively violent, which is a given. Approach it as a Stallone movie (which it is) or as a Hill movie (which it is), but it's more interesting as a Hill movie. If it gets this director back into the hard-driving action game, then it will have done its duty.