First time I watched it, my brain could not process what was going on in the film. Paradoxes happened everywhere. How could you go back in time and kill your grandpa? I first thought that it was impossible because common folks would think: if you kill your grandpa, there will be no you to go kill your grandpa in the first place. But what if that is not YOUR grandpa but another version and another timeline. Another reality. What looks like your past becomes your future. You send your friend reverse back in time to make another branch of reality for a better outcome, in that reality not yours. So what has happened, happened. ***Until I completely understood the concept of the TEMPORAL PINCER MOVEMENT and my brain could comprehend the red team and blue team perspective at the end, watching the movie for the second time were so rewarding and became my best cinematic experience. I am glad that I did not give up the movie after my first watch.