R.I.P and all that...
But sorry I can't help but think that the majority in this thread couldn't even name more than 2 movies he was in.
Prometheus just stfu
many actors back in the 60's were fucking awful aswell. Infact we only noticed that the actors are "shit" nowadays because of the difference and difficulty of the movies they take on. Most movies before the 80's were very basic roles which had good solid performances. It is a lot harder to pull of a strong acting performance and have to basically change your entire role throughout the movie which is what tends to happen in modern Hollywood movies. Actors play numerous roles using numerous methods.
Yes a lot of actors are crap but that's not a new thing, it was always like this. (Not to mention, there are a lot more actors and movies these days).
Next you will be saying John Wayne was a marvellous actor, even though he banged out 50 movies or so playing the same role, same voice