It's nice and all you know your Kubrick, but putting it like that's somehow a counterargument to what Wonko said is a bit of a false dichotomy. By extending ad absurdum, if someone creates a fantastic painting, you could walk up and say, "meh, you didn't create that. It's got people on it and there's already paintings with people, so maybe you did it better, but you didn't creating nothing." Which is clearly a silly thing to say.Not really. Everything has been done before. Instead of looking for ways to look different, just pick something and do it better.
The one thing you should do as a creator, in my opinion, is looking for ways to look different, to look for places to break away from what has been done to death and create something fresh.
Sure, if you break any creation down into components, it'll have stuff like cars and shoes and coffee and objects that are red and people saying hi, and for each and every component you can probably find some other work by someone and point to that and say "see, it's been done". But creation isn't about breaking something down to it's constituent parts and pointing out where it's been done, it's about assembling those parts into something interesting.