Solid 6/10
Or maybe 7, it still hasn't had time to set with me.
To me, there's no point in debating whether the premise (that he lived for 14000 years) is possible or not (although it isn't in real life, let's not kid ourselves). It would be like watching Spider-man and complain it's impossible to get superpowers from a radioactive spider.
Let's work with that as a fact, and move on from that.
What I liked about it was the pacing and the discussions which were really interesting on a philosophical standpoint - it really is a good idea to entertain, even if not really plausible.
I liked the overall style of the film, especially that scene where they are all huddled near the fireplace (and how when the lights are turned on it "breaks the spell" that John had cast on the group and everyone looks around sort of lost).
I liked that discussion remained purely in dialectics - arguments and counterarguments, questions and answers, no physical truth, no pictures or paintings, or documents, et cetera. I feel like that contributed heavily to the academic discussion, since most of the people in the cabin were merely (perhaps warily) conjecturing, and, like I mentioned before, entertaining the idea (which makes total sense in context, since a scientific-minded person is easily grabbed by an interesting enough idea).
Now here comes the less fun list of things I didn't like, or maybe my list of "likes" explains much of my list of "dislikes".
I did not like the way most characters were caricatures of real people. They didn't feel like real people, but like mouthpieces the writer wore to get a point across. The religious woman (we'll get back to her in a bit). The motorcycle-riding, leather jacket-wearing, student-dating professor (who, of course, could not be likable, and the writer brilliantly decided to give him a motorcycle, a black leather jacket AND made him date a student because otherwise how would we have known?). The wise black man (there is a page on TV tropes about that). The woman whose only lines or general function in the film are to say "I love you" to the main character (before we even learn her name, if I'm not mistaken) and to stand there being pretty, I guess, she didn't do much on the film besides giving John 100% credibility from the start. You know, like any normal person would. Other characters are not mentioned either because they're not really relevant to the story, are not badly written, or because I have other gripes about them that need not be in this paragraph.
I found his being Jesus entirely pointless. Unnecessary. With literally no rhyme or reason. There was 0 reason for him to be Jesus in the film. I let out an audible sigh when that happened. Now, I'm not religious, and I'm not saying it was blasphemy or that it's christian-bashing or whatever else the christians on this board have complained about. I'm saying it made his story ridiculous, it *cheapened it*. A cheapening that made his story less believable - as far as stories about 14000-year-old men can be -, and ludicrous. I can swallow him meeting the Buddha. I suppose it's possible that he knew Columbus, or that he was friends with Van Gogh. It does not sit well with me that in his adventures he became Jesus. That is straight-up ridiculous, perhaps the worst plot point I've ever seen in my life.
It really brought this film down for me. Sure, he could have met Jesus, or been his teacher (after all, he had already mentioned his knowing famous people and the Buddha, what's one more?), and it wouldn't have changed a thing. He could have still talked about how most of "the real thing" was changed and mixed with fairy tales. He could have still demystified Christianity and given essentially the same message. Except for one thing: they couldn't have had the scene where the religious woman breaks down. I kind of feel as if that was the only reason they followed that path, which actually shows just how badly written this was in general.
Being a bit more subjective, it made feel so disappointed with it, because it kind of ruined the whole feeling of "this could be possible". It pushed my suspension of disbelief too far. Even if it's possible that he met Van Gogh and was friends with him, it's still very unlikely (he says it himself, one man, one place at a time), but, since that's not a *plot point*, it can be forgiven. The film and the direction it takes does not hinge on his knowing Van Gogh. So I forgive it. That is not the case with the Jesus thing.
The other thing that really bothered me was the ending. The fact the they missed the opportunity to make it ambiguous makes it lose points with me. They should have stopped while they were ahead and rolled credits as the guys drive away.
But they HAD to not only cut out all the thinking and the ambiguity as to whether he was telling the truth, they had to do it in the most absurd manner possible - by having the psychologist guy overhear him talking about his fake name sixty years before and then dying. If the Jesus thing is the worst plot point I've ever seen, that is the worst ending I've ever seen.
1) Like the other plot points, it relied heavily on coincidence and capacity to stretch out our suspension of disbelief as much as possible.
2) It destroyed a really good reason to like it which was the discussion of his actually being immortal, by just telling us the answers. Imagine how bad Broken Flowers would be if at the end he just got another letter TELLING Bill Murray's character who his son is and when he's coming? That cheapened the film awfully. It brought it down from an 8 to a 6, even I didn't account for the Jesus thing.
That was it for me. There are more things, but they're really small compared to what I said. I think this had a lot of potential, but it made too many big mistakes that made it not very good - perhaps not bad, just not good.
Overrated, in summation.
I don't know whether to be proud or terrified. Perhaps both.
EDIT:grammar, typos and such