If you're a huge sci-fi fan, I'm guessing this might be a snooze if you've read/watched/seen & heard it all, but for me-- as a casual browser of sci-fi --it hit the spot. Not sure why all the horrible reviews. It sure isn't Apollo 13, but I didn't want to be bogged down by all the technology & scientific details today anyway. It's vague enough to cover & fit the content into one movie & give us all the big picture of WHAT IF?!? Worth the stream. Might have made a better series. I'd like to see what happens next.