Spoilers
This was a really nice episode and really sad; I wanted to yell at Rory at the start for giving Amy such bad information but when Old Amy showed up I wondered how they would resolve it; I actually thought she would survive and come back in the finale or even if the two time streams would produce a duplicate version of the Doctor who would be the one who got killed by River at the end.
I was really sad after the Doctor closed the door on Old Amy and the emotional scenes were unlike anything that I've seen on most of this series so far.