Wealthy old man living in space to halt the spread of cancer

Hi all! I’m racking my brain trying to think of a movie name. It’s a Hollywood movie, poss 2000’s but could be a decade either way (!)
Can’t remember the bulk of the movie plot (possibly games or challenges for characters to navigate) but towards the end, the protagonist visits an old guy in his living quarters in orbit. The old guy says something to the effect of “the air in space is the only thing that is stopping the cancer from spreading”. It turns out this rich guy has funded everything that the protagonist has experienced. Also can’t remember if the protagonist is male or female!
I may have some of the details completely wrong, but this is what my memory is telling me.
Thanks in advance for any help 🙂