Steven Spielberg
He is visiting Japan now. I learned that he is 71 years old yesterday. 71 years old?! Wow!
Steven Spielberg, Clint Eastwood, Martin Scorsese and other elderly directors are so powerful (maybe amazing instead of powerful would be better, what did you want to say ?)!
Look at this picture, his cheeks are shinier than mine(Lol)
I think that they don’t care about age because they are doing their best at what they love (or "doing what they love best" as Zena pointed but the meaning is a bit different so you have to see what you want to convey).
I will look forward to seeing (seeing can be omitted) the movies they directed. -> The whole sentence seems a bit off, you could say "I look forward to their next movie" for a more natural feeling. That is assuming you were talking about their future movies, but you could also mean "I want to see every movie they directed as soon as I get home and find the time", in which case you would say something different, maybe "I can't wait to see every single movie they directed.".