The movie "The Pursuit of Happyness" 2006

Chris Gardner is a family man struggling desperately to get by. Despite his brave efforts to keep the family afloat, the mother of his five-year-old son, Christopher, breaks down under the constant pressure of financial hardship. Unable to cope any longer, she reluctantly decides to leave. Now a single parent, Chris stubbornly continues searching for a better-paid job, using every promotional trick he knows. He is accepted as an intern at a prestigious stockbroking firm and, although unpaid, works in the hope of securing a job and a promising future at the end of the internship.