So, does the science in Interstellar make sense?
Professor Kip Thorne, the science advisor and executive producer of Interstellar, has written an excellent book called The Science of Interstellar in which he describes several plot points and how he thinks they could be made to agree with our understanding of physics.
That's not what we're doing here. The goal of this post is not to detract from the storytelling or criticise the writers (it's fiction, after all!) but rather to give you an idea of what astrophysicists have actually seen, and how that compares with what you see in the movie.