If you have not tried your big Note 4 screen out with an HD movie, now is your chance. Download the Gravity movie for free but do it before it expires on January 30th.
It is only if you got the invite in email imbelieve. After reading your tip I went to the play store and it showed up on full price. But coincidentally at same time for email to redeem it...and it adds free.
That offer has been around for a little while, and depends on the device. For example, I was able to get it on my Nexus 5, but it didn't show up on my wife's HTC One M8. But definitely get it while you can and if you can--it's a great movie!
EDIT: Sorry, never mind--this appears to be a new offer, although Gravity was being offered free about a month or two ago as well.