It’s the late 1970s and Mars is America’s top confectioner. But Hershey is hungry for a comeback. It’s plotting a return to the top powered by a rush of new candies it hopes can nibble away at Mars’ market share. Not that Mars has any intention of surrendering pole position without a fight. It thinks it can stop Hershey in its tracks by focusing exclusively on best-selling brands like Snickers, M&M’s and Milky Way. But what neither company knows is that a tempting opportunity from Hollywood is about to disrupt the balance of power in candy land.