I disagree and I will give you my reasons.

1)Marlon Brando won the Oscar for “Best Actor” for his performance as the character Vito Corleone in the film The Godfather (1972). Two years later Robert DeNiro won the Oscar for role as Vito Corleone, the same character as Brando. (never been done before).

2)What film can we say is a classic in modern times?

You mean to tell me that these actors were chosen "Best Actors" for no reason? These films didn't have much swearing and were sucessful, so the argument of sucess would be invalid and the awards prove that "realism" in the roles and characters is also false.