May 1, 2015 11:27 AM EDT

Scarlett Johansson stopped by The Tonight Show Thursday to promote her new movie, The Avengers: Age of Ultron, and also to play one of Jimmy Fallon’s favorite games, “Box of Lies.”

If you’re unfamiliar with this game, each player takes turns selecting a random box and then making the other person guess if they’re telling the truth about what’s inside said box. And since ScarJo is a gifted actor, she turned out to be quite good at this game.

As always, there are some truly bizarre items in the boxes, like a Starbucks cup filled with baked beans, and a Black Widow action figure holding hands with Gumby on a miniature bench.

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