I've never seen Grosse Pointe Blank, but this story makes me want to see it.
Fabulous work! Seriously. I love how Snape pines after Harry for eight years to the point that he takes out a hit on his own life that we think he might be capable of doing but aren't sure of until the last bit of the story. For a while, I thought Snape might be Confidential. Then again, Snape is a master manipulator, so he kept us guessing.
Harry as an Assassin is not a stretch for me, seeing that he wants to be an Auror. He's just so funny and paranoid and crafty--an equal for Snape in all ways.
Angelina was a surprise. I enjoyed her as the wise cracking, arms dealing, video game playing secretary.