The world is split into two factions: those who laugh at Abbott & Costello and the other half who watch the first half and shake their heads and wonder why. As one of the most popular comedy teams of all time, they never possessed the outrageous class of the Marx Brothers, nor the heart-tugging empathy of Laurel & Hardy. True, they never developed their characters past their original stage personas, and this was truly the Achilles heel, the great flaw, that kept them from achieving believability with their audience.
But as case-hardened veterans of the vaudeville and burlesq...