In short it's an entertaining 2 hours. It's more of a psychological drama using sci-fi to keep the storyline scintillating and less predictable. The very end employs an over used "horror-genre" end: makes it a bit of a let down, "oh, not this again." And as other reviewers have noted, the "Godfather" scene is just unnecessary and distracting since it doesn't really fit with the story. It's as if someone didn't want to leave it on the cutting room floor, although that's where it belonged. Lastly, the time differential is just an amateurish device, that is inconsistent with good sci-fi. If there was a time differential, which makes no sense since all parallel worlds are basically technologically, socially, and demographically identical, the differentials would more likely vary from universe to universe beginning at the jump. The director uses a cinema graphic tool ( colored and slightly fisheyed lens) to show the perspective of an "alt" in our world, but only introduces this tool toward the end of the movie, which feels cheap and disappointing.
Review of Parallel
