science verses fiction babble talk vs real

This is a fictional movie - of course - I don't expect all the science to be real. Sounding real is cool, and fine too.

I know much of it was based "around" REAL science, probably bent a lot also....

My question is, what do you science thinky types think about the part where they would be able to "solve gravity" based on "data" from some singularity inside a black hole?

My limited study and knowledge tells me that made zero sense - but works fine as fiction to make the movie work, I get that - because I don't see what they would learn from lots of gravity data happening inside a black hole. How would that info, in any sciencey way, help them create anti gravity or whatever magical science hub-bub the professor wanted to invent to get large ships and amounts of people off Earth?

There may be no rational explanation for this part of the fiction, but I would love to hear some people try.