Robert De Niro credits his successful film careerto nothing more than being “lucky.” “I’m lucky that I have whatever I had that makes me have a successful career, if you will,”CBS News quoted him as saying. When asked that it’s got to be a little more than luck, because of the amount of work that he puts into characters, he replied saying that he is lucky that he has the drive to get better with every role. His latest run-in with luck is his role in ‘Silver Linings Playbook,’ alongside Bradley Cooper. De Niro plays Pat Solitano, Sr., an obsessive-compulsive, die-hardPhiladelphia Eagles fan, who struggles to deal with his even more obsessive and mentally-unstable son.