'Limitless'? Not Hollywood, says Robert De Niro

Despite his years in film, Robert De Niro says he still can't do anything he wants in Hollywood.

He notes the troubles and delays he experienced with "The Good Shepherd," the 2006 CIA tale that he directed and starred in. De Niro doubts he could make a similar film now. He says people don't really want to do "those kind of movies" nowadays.

Still, De Niro says he does have a choice of roles that other actors would envy and that he "can't complain."

The actor's latest film, "Limitless," debuts in theaters March 18.

In it, De Niro plays a mega-mogul. Co-star Bradley Cooper plays an unsuccessful writer whose life is transformed after he discovers a secret drug that allows him to use 100 percent of his brain.