Will Smith plays John Hancock in the 2008 movie Hancock.

On the movie poster and in the movie he is wearing a pair of black Dior Mist sunglasses.

Even though these are ladies sunglasses, Will Smith still looks cool in them.

In the same film, Will Smith can be seen wearing a pair of Fitover Navigators.

Reference: Dior Mist 1/S - Color: Black