From Nick Mamatas:
You are in a mall when the zombies attack. You have:
1. one weapon.
2. one song blasting on the speakers.
3. one famous person to fight alongside you.
* Weapon can be real or fictional; you may assume endless ammo if applicable. Person can be real or fictional.
1. The Traveller-vintage Fusion Gun: Man Portable. Given the situation, there's no kill like an overkill.
2. "Mars: God of War" from Holst's Planet suite. It's reasonably long, so I won't get sick of it in ten minutes flat, while at the same time being unbelievable kickass.
3. Shane, from Shane. I don't think he missed one shot in that entire film.