Google in November 2017 began showing movies and TV shows to watch on YouTube and other providers directly in search. Now, it seems Google is pushing that a bit more with the ability to add more streaming providers and testing new interfaces for it.
I personally do not see the new interface, but Valentin Pletzer posted several screen shots of this on Twitter over the past couple of days.
Here are some of his screen shots:

Here are the providers he can choose from:

This is what this looked like back a couple of years ago:

Forum discussion at Twitter.

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