Apparently they tried to go to pains to get as much right on Interstellar as they could. Here is a post that was written up about what they got right and wrong:

http://time.com/3572988/interstellar-science-fact-check/

I think that the problem with trying to write a movie about black holes is that there is awful lot of speculation involved since, well no one has actually been to one.

The situation in Gravity, on the other hand is a bit easier to emulate based on empirical knowledge. That is my opinion, anyway.