Prometheus alternate beginning/ending

[WrongSprite]

So, to anyone who's seen them, what did you make of the alternate beginning/ending of prometheus?

I ask because I haven't seen it at all yet, so I don't know whether I should see the cut version or the alternate version first.

 

[Montezuma's Lawyer]

Is there an ending that involves giving me my money back?

 

[Nouw]

I'm wondering if the Prometheus director's cut will do what the DC for Blade Runner did for Blade Runner.