Morally complex, ambiguous in regards to the choice's success, etc.

I had a mild problem with the tone of it. We have a short sighted narrator not necessarily the wisest when it comes to doing "what's best," so the movie feels bittersweet at the end, when I feel it could have had complexity in regards to its success in addition to its emotional complexity. If that makes sense.

Also, the focus of the ending being its effect on the child rather than its impact on future self was a strange choice for me. Self-sacrificial, okay... but not necessarily the most interesting path to take in a film about time travel, in my opinion.

I'll revisit the film and see if it plays better second time around.