I didn't enjoy this movie.

I thought the script was messy, poorly developed, and lost all its intensity after Amanda was considered dead. Ben Affleck chose the easy way, he resolved the whole plot by a series of muddled flashbacks instead of getting the audience involved in the process. I won't extend my thoughts on the flaws of the scenario, but clearly there are huge ones.

As for Casey Affleck, he clearly is one of the worst actors I've seen, he is always mumbling and has the same dumb expression on his face all the time. The rest of the cast is average, but how can you blame them when their characters haven't been properly developed ? Where is the depth and the psychology that makes you care about the protagonists ? One last thing I found annoying is Ben Affleck's direction which is bland, really uninteresting nor captivating. And the editing was awful, with quite a few pointless shots and scenes.