Can't download movie in Oculus Video?

I just purchased the 3D version of The Martian in Oculus Video (the theater). The only option is to stream. But I'd like to download the video (its 6+ gb) so I can watch it offline if I'd like to. I paid $25 for it, why can't I download it?

Update: I was able to download the fill video. The issue was I did not have enough free space (6 gb). One I cleated the space, the movie downloaded fine. Thanks for the help to the oculus team.