This article desperately needs an update 

It was last updated over a year ago.   There is also an excess of references to "Unbox," which is a brand Amazon retired long ago.  Amazon Instant Video is a hugely important product because it has by far the largest library of movies available for online viewing (through Prime, rental, or purchase).  If you're a serious movie buff who primarly watches films online, you know Amazon blows Netflix out of the water.