Here's the situation:

Angry Pig Films, Corp. has 2 DBA's

1- Angry Pig Films
2- Crazy Sow Video

What is the proper way of saying that those 2 DBAs are actually the corporation?

Something like "Crazy Sow Video and Angry Pig Films are part of the Angry Pig Films, Corp" ---- is that right?

You might want to check with your states Secretary of State. You may need to contain specific language in your state of incorporation or have restrictions on DBA's.