The Black Hole streaming: where to watch online?
Currently you are able to watch "The Black Hole" streaming on Amazon Prime Video, Amazon Prime Video with Ads or for free with ads on The Roku Channel, Amazon Prime Video Free with Ads. It is also possible to rent "The Black Hole" on Amazon Video, Apple TV online and to download it on Amazon Video, Apple TV.
Besides streaming, you can also buy the movie on DVD from Amazon DVD / Blu-ray and watch it anytime.
You can also stream the title for free on Kanopy, Hoopla, Fawesome.
