Pursuit of Happyness.

Chris Gardner (Will Smith) is a struggling salesman. After failing to make ends meet, Gardner finds himself and his son evicted from their San Francisco apartment with nowhere to go. When he works as an intern at a prestigious stock brokerage firm, he and his son encounter many difficulties. Despite his troubles, Chris continues to honour his commitment as a loving and caring father, using the affection and trust his son has placed in him as an impetus to overcome the problems he faces. And he's a very honest guy. At last , he's a successful guy and a millionaire.

It's last year movie. It was a very sad show. I Love this movie so much ! :D
Yeah, Based on a true story ;