10 of the Worst Decisions Ever Made

Mars Turning Down the Chance to be in 'E.T.'
Mars didn’t see the profit potential of casting their candy as a supporting character to a little boy and an alien puppet, but Hershey sure did. ©Universal/Getty Images

"Is he a pig? He sure eats like one," quipped Gertie when she first laid eyes on the small brown alien, E.T., in Steven Spielberg's 1982 blockbuster movie. E.T. may have had a sweet tooth, but those brown, orange and yellow candies he was snacking on weren't M&Ms.

It could have been M&Ms, but Mars passed on the chance to use their candy in "E.T., the Extra-Terrestrial" when Spielberg asked. Instead, Hershey smartly stepped in with Reese's Pieces when opportunity knocked. The good fortune for knowing when to say yes? Sales of Reese's Pieces jumped 65 percent in June 1982, the same month E.T. was released [source: Time, Conradt].