Getting a bunch of celebs to agree to whip rubber balls at each other proved easier than imagined.

The yeses came as fast as the asks went, says Crabbe.

I think its very helpful when Michelle Obama is involved.

Turns out that people are interested in her and interested in doing a comedy sketch with her.

I was surprised by how seriously everyone took it.

It stopped being a comedy segment once the whistle blew.

When the game(s) began, who turned out to be the ringers?

Michelle Obama has legendary guns and they work very effectively in throwing dodge balls, reports Crabbe.

And Benedict Cumberbatch is pretty crafty.

Alison Janney has a pretty serious competitive side.

She was both taunting and pretty fierce in the actual playing.

And what about Corden?

The cast ofDark Phoenixwill be subjected to a double-decker bus tour of London led by Corden.

(I cant promise that they got the most accurate architectural details on their bus tour, says Crabbe.

We even got to work in a Viking pub crawl. )

(Turns out French commuters dont like being slowed down by dancers in the crosswalk, shares Crabbe.)