Google added 4K movies to its library back in late 2016, following the launch of the Chromecast Ultra. Since then, many people — myself included — came to realize that there was one big oversight: It's not possible to upgrade your existing HD movies to 4K. There was no upgrade pricing or even an option to remove a movie from your account and then purchase it again in 4K at full price. As it turns out, that issue will be rectified soon: Google is bringing upgrades to Play Movies, and it looks like they will be free.
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