Honestly, I believe Angelina is actually a Counterphobic 6 with a strong 4 in her tritype.
ESI-Se 6w7 Sx/So, (648) - Truth Teller

While I believe Brad Pitt is
ESI 9w8 So/Sp (936) - The Mediator

They are actually Identicals, but because their Enneagram is so different they seem to be opposites.
At the end of the day, both bond over their shared interest in Social causes, and their ethical values they bring forward when engaging in those causes.
Just because they are the "It-couple" of Hollywood does not mean they must be Duals...

I know my typing is not too popular, though I'd still like to get it out there. ^^'