spoil it...

Christoph Waltz is the main character, Matt Damon tells him to solve this problem that proves life is meaningless so he can make money off it, during this time Christoph falls for a girl breaks her heart even though he could have been truly happy with her, there's also this wiz kid who hangs with Christoph he's also Damon's son, in the end Christoph goes crazy and jumps into a black hole.

I honestly loved the movie but was disappointed by the ending.

Why can't you just watch it?