There are spoilers, and I'm not using spoiler tags because the entire post is about the spoiler. If you read on and you haven't watched the movie, it's your own fault. 
I watched this a couple days ago and I really, really enjoyed it. Definitely one of the best movies I've seen in a while. But the ending was a little uh... unfufilled I guess? Does the final (and also repeating) scene of them walking along the beach enjoying themselves imply that they keep going to get their memory erased over and over? If so, that's extremely depressing, what a crappy way to continue living your life. But it's confusing, because Mary finally realized she had her memories wiped away too, and that's why she sent everyone their tapes. So you would think they'd finally understand that getting their memory wiped was a bad idea to begin with, and would do one of two things: learn to live with each other or break up (for good.) I figured listening to director commentary would help me figure out the last scene, but they basically left it at "ah yes, we'll just leave it up to the viewer to decide." I hate that.
I watched this a couple days ago and I really, really enjoyed it. Definitely one of the best movies I've seen in a while. But the ending was a little uh... unfufilled I guess? Does the final (and also repeating) scene of them walking along the beach enjoying themselves imply that they keep going to get their memory erased over and over? If so, that's extremely depressing, what a crappy way to continue living your life. But it's confusing, because Mary finally realized she had her memories wiped away too, and that's why she sent everyone their tapes. So you would think they'd finally understand that getting their memory wiped was a bad idea to begin with, and would do one of two things: learn to live with each other or break up (for good.) I figured listening to director commentary would help me figure out the last scene, but they basically left it at "ah yes, we'll just leave it up to the viewer to decide." I hate that.