They cheated the entire time.
When you put George Clooney and Channing Tatum in a room together, you're pretty much guaranteed a good time. We gave the Hail, Caesar! stars a test to see how well they really know each other and basically ended up with pure magic.
As soon as we mentioned the test, George — like a damn boss — knew EXACTLY what we were doing.
What's the first thing George thought when meeting Channing?
Channing: What did he think of me? OK, I got it.
George: Fuck him!