Hal Jordan is given an alien ring that give him powers, allowing him to join an intergalactic police force, the Green Lantern Corps.
Currently you cannot stream Green Lantern anywhere online. You could previously stream the movie with HBO Max but it has now been removed from the platform. If we find streaming options for this movie then we'll be sure to update this page.
Luckily you can buy or rent Green Lantern to watch online from a number of different digital platforms including VUDU, Microsoft Store, FandangoNOW, Apple iTunes, Google Play Movies and YouTube. You can rent the movie for as little as $3.99 and you can buy the movie for as little as $14.99.