Question about the kids (spoiler alert): So I guess they never....
What really bothers me about the movie is two things:
1. The beautiful children wind up never having existed. He loved them so much, and he will never see them again!!! How sad!! And stupid!!!
2. One of the points the movie seems to be making is that money isn't the key to happiness, and yet at the end, both of them are extremely wealthy. And seems to be one aspect of the happy ending.