The Fantastic Four, from the new movie, are trying to defeat Dr. Doom, but they can't. So they regroup, and rattled, they decide to share a 40 once Olde English 800 malt liquor. And once they're finished drinking it, they get a second wind, and they kick Dr. Doom's ass! Then the slogan says: "Olde English 800: the Fantastic 40!"
(Do you think they'd do an Olde English 800/Fantastic Four tie-in ad? No? They should.)