Couple questions... *spoilers*
1) What was Rick's job? I heard that one guy saying "I want to make you rich" and I kept thinking he was somehow in the entertainment industry... but no one, nowhere, recognized him as one would recognize an actor per se. Plus, his place didn't seem all too lavishing at all.
2) Were we meant to think that Natalie Portman's kid was his? I don't remember it ever being clearly labeled. That shot with him in the room with her and the kid but his reflection not being shown in the mirror?.... What?
3) Who's Billy? I heard him say a couple of times "after Billy died..."
4) Who played the blonde that stood fully nude on his balcony on the phone? She was absolutely stunning.