This is a fan recut of the original 1978 trailer for Superman: The Movie.
The significance of the image of Kal-El/Superman wearing the black suit will be explained later.
Note, however, that Marlon Brando personally insisted that the “S” be prominent on the black suit, just as it was for the white suit he wore as Jor-El.
“The Kryptonian prophecy will at last be fulfilled– the son becomes the father, the father becomes the son.”