I saw this today and was satisfied. Not the best sci-fi movie, but a good one. Flawed, most likely due to the script, but entertaining nonetheless.

Some people started leaving when the film faded out as Shaw was heading off the planet and leaving her message. As the final scene began, they were still walking out. I kept thinking, "Don't people want to see the whole movie?" Apparently not. These same people probably later complained that Prometheus didn't have the Xenomorphs (even if it's just at the very end).