Back to the Future - watch online: streaming, buy or rent
Currently you are able to watch "Back to the Future" streaming on Amazon Prime Video, SkyShowtime, Strim. It is also possible to buy "Back to the Future" on Apple TV, Rakuten TV, Blockbuster, SF Anytime, TV 2 Play as download or rent it on Blockbuster, Apple TV, Rakuten TV, TV 2 Play, Viaplay, SF Anytime online.
There aren't any free streaming options for Back to the Future right now. If you want know when it is streaming for free, click 'Free' in the filters above and hit the notification bell.