Years ago I rented Prometheus on blu ray and it had two different cuts. You know how on the group of main researcher characters there's a couple. Well the main difference in the cuts was that in one, they were a loving couple and excited to be doing their jobs and always happy to be together. And in the other they were always arguing and insulting each other and seemed genuinely pissed to be working together. That always cracked me up, like the creators couldn't decide which to go with so both are included on the blu ray.