If you didn't watch the movie Interstellar yet I would watch this one hour long documentary first. It's not necessary but in my opinion you'll enjoy the movie even more after this well explained documentary. Well explained but still difficult to understand for a lot of us as most of the material and science is still speculation, and it's just not the easiest thing to understand, we humble mortals. Nonetheless it's very interesting, certainly if you're interested in this subject. The narrator is Matthew McConaughey, lead actor from the movie Interstellar. He has a good and clear voice, easy to listen to. The images are of good quality, they're informative, sometimes stunning but certainly never boring. It's a nice documentary, a good entree before watching that brilliant movie Interstellar.
