Good Kill is certainly worth watching. It's most successful at introducing the subject of how a drone operator deals with the fact of sitting far away from the destruction he or she visits on targets, and with the fact of collateral damage on those near the targets. I don't know that I would accept that the situation is quite so grim in the real world as proposed here, but I have no more way of knowing that than the filmmaker would have of knowing the opposite, given that there is no attribution and no claim to be based on actual events. It could be this way. Apart from that, as with most anything Ethan Hawke is in, he's worth watching. I found his commanding officer a welcome change from the comic book version I was afraid we were about to get. Mostly, we get very believable service men and women dealing with what are very valid questions of limits and effects on their lives. It is somehow very interesting that there is one goal set up that I would be very surprised if any viewer did not anticipate, and even more, wish for, hugely, even though in the wishing there will be that element of thinking "I really shouldn't be rooting for that". I won't say what it is, because you cannot miss it. At the very least, an interesting piece of thoughtful entertainment.