Why the ending isn't stupid!!!!
I watched this movie and I loved it.. The message behind it, the eccentric idea of a movie that was beautiful..
Like you, mid-way through watching the movie my mind kept thinking of solutions to why Hank is talking to a corpse and using him to survive..My mind thought of many things:
1) That Hank was crazy and he is just imaging all this stuff.
2) Hank was just dragging a dead body this whole time and he was just talking to himself.
3) After the suicide attempt at the beginning, I thought he actually didn't survive and infact died, he was imagining all of that at the last few moments of his life while he was choking to death.
But then I realized that the ending Manny was actually real and Hank wasn't crazy..
If you listen closely Hank through out the movie keeps telling us that, "Maybe I am just starving and you're a hallucination" and other such things.. They did that on purpose to keep our minds thinking of what the ending might be and we were all wrong!
The whole movie is about hank "Overthinking" things, and here we were watching the movie overthinking the ending when It was just real! We totally put the theory out that, "Hey, what If Manny was a special multi purpose tool corpse guy...". We NEVER thought of that because we were again, OVERTHINKING the ending, much like Hank.
So It was kind of a message to stop overthinking things, maybe things are just what they seem :)