@bazkie It's an Arthur C. Clarke book (which I think ended up as a trilogy) about a large rock like object that appears to be "steering" passing by Earth, and the crew of the ship sent to go and investigate it.
It's a very slow book, heavy on description and nothing much happens, which has always made people think it would be really hard to make and sell as a film. But being slow doesn't make it not-interesting. It is fascinating, though I don't really like the path of the later books much.
In an ideal world (and when AI can do it, I will ask it to!) it would be ideal as an interactive VR movie that allowed you to explore before you moved onto the next parts. But I guess I will settle on a movie for now.
Morgan Freeman has been associated with the movie for years, and is somewhat obsessed with it; in a good way:
https://www.youtube.com/watch?v=20DaSHa4I1k