Or the other way around, Google could cut them off or penalize them in their app store in retaliation, citing them as bad customers.
Wouldn't this be akin to MS telling Dell it's going to yank windows licensing in retaliation for selling red hat.
I'd also argue that it's not technically monopolistic, but would certainly have negative consequences to the ??AA "partners" as well as chilling effects on others. But if Google wanted to take a nuclear approach, that'd certainly be one tack.
The more interesting question is what chunk of movie revenue comes from Google.