Lately my interest in black holes has peaked and so I decided to create one in Blender. 

Compositor Setup for the First Image

Setup for the Event Horizon.
It is possible to switch between two types, as shown in the following Renderings

Setup for the Accretion Disk
( compressed Order only for Screenshot purposes)

Here you can now see the Photon Ring of the black hole, just like the depiction of the black hole from Interstellar.