You can rent or purchase movies in 4K from iTunes, but you cannot download them locally to your devices like with 1080p (HD) and standard definition (SD) content offered on the store.
4K movies from iTunes can be streamed but not downloaded locally

You can rent or purchase movies in 4K from iTunes, but you cannot download them locally to your devices like with 1080p (HD) and standard definition (SD) content offered on the store.
Learn how you can enjoy high-quality HDR (High Dynamic Range) movies and TV shows in the Apple TV app on your iPhone or iPad. A quick heads up: it's a lot easier than you think!
As Apple and Comcast continue to debate offering home rentals of the latest flicks just weeks after their release, Bloomberg today cited 20th Century Fox studios chief Stacey Snider as claiming that this will become a reality within 6-12 months.
Could Apple be in the running to land distribution rights to James Bond, the film franchise based on a fictional British Secret Service agent created in 1953 by writer Ian Fleming?
Apple is in discussions to move its growing original video content division to the legendary Culver Studios while battling with Netflix over the rights to a brand new high-profile original drama series starring actresses Jennifer Aniston and Reese Witherspoon.
Just how much should Apple's iTunes Store charge for 4K movie downloads?
According to The Wall Street Journal on Monday, Apple has proposed pricing new 4K movie releases at $19.99, which is precisely what the company currently charges purchases of major digital movie releases in full HD (1080p) resolution on iTunes Store.
Hollywood is reportedly discussing ways to make the latest digital flicks from major studios available for purchase or renting as soon as two weeks following their theatrical debuts in order to make up for declining sales of DVDs in the age of Netflix.
As news broke that Apple is poised to become a major player in Hollywood by spending a cool $1 billion on original TV shows and movies in the next year, Variety reports that Matt Cherniss, who was a president and general manager of WGN America and Tribune Studios, has joined the Cupertino technology giant's growing worldwide video team.
Apple has set aside a reported $1 billion war chest to procure and produce as many as ten television shows over the next year, according to the Wall Street Journal today.
Entertainment conglomerate Disney announced during its latest earnings report today that it intends to end a major distribution deal inked with Netflix a few years ago and pull all of its movies from the popular service, including Disney as well as Pixar's titles, CNBC said today.
Apple may be readying 4K resolution video content on iTunes with high dynamic range (HDR) color support ahead of a possible 4K-capable Apple TV introduction this fall.
A Florida company named CustomPlay yesterday filed a patent infringement lawsuit against Apple with the U.S. District Court for the Southern District of Florida over the Siri-powered 'What Did He/She Say?' feature used in tvOS on the fourth-generation Apple TV.