Movie Help?

hey u know that guy on the allstate commercials the black narrator guy (Dennis Haysbert) well i need 2 know the name of a movie hes in where he goes in a shower and when he comes out hes white, srry bout the lack of detail but thatrs all i know, besides that its a comedy, it might be a couple of decades old, my bus driver told me ab out it, thx ( :