> Sony is not a US Business...

Yep, it sure is.

https://en.wikipedia.org/wiki/Sony_Pictures_Entertainment

"Sony Pictures Entertainment Inc. (SPE) is the American entertainment subsidiary of Japanese multinational technology and media conglomerate Sony."

The studio takes their direction from Japan-based Sony. Japan, in fact, required changes to The Interview assassination scene to tame it.

Nevertheless, it's an American company, subject to and benefiting from American law enforcement. They are a relevant company for the FBI.

Sony has US businesses.