For fuck's sake, I'm lonely after four hours without my wife. She better not be having a good time at my parents'. I bet they're telling her jokes about me. I come back. The ending sums up how Hollywood can throw a ton of money and a lot of expertise at a profound idea and turn it into something pretty dull.
Hanks is sad and confused in the real world.
Luckily, though, he finds a replacement for Hunt pretty damn easily. That is so we can leave the theater not worrying about whether a fictitious character will be okay. Thank God, Hanks is happy. Thank God, none of the messiness of life caught up with him. We know where it comes from because it has a special marking on it from a sender shown at the beginning of the movie.