This is a new set of Marvel heroes that I was not familiar with until my kids briefed me and bought me up to speed.
With so many different things happening at Marvel nowadays - it is hard to tell when (what year) things are happening. Take the new Marvel Avenger "Civil War" movie for example. In this very recent movie - Spider Man is a real young kid still in high school with pimples and awful costume.
What about all the previous (and terrific) Spider-Man Movies where he is in college? Who knows? Who cares? We're selling tickets here babe!
I believe "Guardians" is set in our time period, same as the Avengers (Why? because "Star Lord" is taken from Earth as a young child in our time period and is NOT delivered to his Dad as he was supposed to be), but now he is grown up and lives in a distant part of the galaxy. Great characters, great adventure, great directing, funny and serious all at one time. A great film with a lot of fun. Get snacks and a blanket and watch the whole thing! Crank up the sound, Great soundtrack. Highly recommended.