In 'Limitless,' Bradley Cooper's the lead, the idol's the co-star

The dark-comic thriller stars Cooper as Eddie Morra, a writer who gets hooked to a drug that lets him use 100 percent of his brainpower. Before long, Eddie gets the attention of a Wall Street titan (De Niro), the Russian mafia and some long-stemmed socialites. Given the spectrum of Cooper's performance, not only is 'Limitless' the title of the movie, it's also the career forecast for a certain ...