Lets have a thread where we can post interesting free to watch films / documentaries without breaking any copyright laws obviously. There's plenty out there on the Internet Archive YouTube etc.
I shall start things off with the following....
My Octopus Teacher 2020
A diver swims with an octopus that lives in a kelp forest off the coast of South Africa.
You can download in various formats on the right hand side if you wish to stream to your TV or something..