Lena Dunham and Jimmy Fallon Go Head-to-Head in "Box of Lies", Prove They Can Both Fib Like Nobody's Business

"Why would I make that up??"

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Could you lie about a box filled with Leonardo DiCaprio headshots labeled as "Frances McDormand"? Lena Dunham can, which may be why she gave Jimmy Fallon a run for his money in the newest "Box of Lies."

What other things do they lie about? Mostly bananas, whiskey, Grimm's Fairy Tales, and Barbie hot tubs. You know, the usual. 

Watch it all go down below:

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