They BUY ads. They didn’t want to buy an ad for a movie that only made 10 million. Why do you not understand how it works?
I think some people may be posting past each other.
CNN sells air time [to whomever - normally!] on their network - sometimes for adverts.
“2016: The movie” buys air time on radio, TV, and website space to publicize their movie on CNN.
Or do I misundertake it?
They do indeed. And General Motors buys automobiles.