Currently you can stream the documentary Trouble the Water with a Kanopy subscription. This will be available through your university or library. You can also stream Trouble the Water for free via VUDU. The documentary was previously available to stream via Prime Video but has now been removed, we will update this page if it is added back to Prime Video.
If you don't have access to Kanopy or VUDU to stream the documentary, then you can only buy or rent Trouble the Water to watch online via iTunes at the moment. It will cost you $3.99 to rent the movie and $8.99 to buy it.