I love Science Fiction movies and I'm usually willing to put up with mediocre character development, and plot holes, but in this case I was so frustrated that I fast forwarded some parts of the movie. This should have been condensed into an hour long black mirror episode. The cinematography and acting was decent, it was the plot, characters, and pointlessly long scenes that annoyed me. The "twist" wasn't really a twist, it's what you expected to happen throughout the movie. I didn't bond with the characters; the only character I actually had feelings about was Sam and I obviously disliked him. The father was pointless; the lover, Danny, was pointless. The brother was only important to the story, I didn't care about his well being. I'm probably being harder on this film that I normally would, but that's because it had the potential to be awesome...instead.....I'm taking the time to warn you not to waste your time.