Steve Martin, who became known for his "the wrong body on a loser", actually showed a blockbuster talent when he made his debut on the screen. The hero of this film, the big fool, was adopted by black sharecroppers from an early age, and then left home to do a variety of interesting jobs. Naturally, he also made a lot of jokes and launched a lively love affair. The layout of the whole plot is relatively loose, but the development of several segments is easy, smooth and amusing, and the entertainment effect is quite high. It is one of the representative works of director Carl Reiner.