Reese Witherspoon has a big little lie shes been keeping from us all.

The Sweet Home Alabama star reminded fans of her real first name which isnt Reese during a conversation with co-star Nicole Kidman for Vanity Fair.

The two were talking about fellow actor Laura Dern, when Kidman chastised Witherspoon for calling her Dern instead of Laura and said that she hates it.

You know why? Witherspoon said. Because my name is Laura, and her name is Laura, and its confusing to me. My real names Laura Jeanne.

So I get confused so I just call her Dern, she explained, adding that the two cant both be Laura.

While Kidman admitted that shed forgotten her friends actual first name, she pointed out that Dern doesnt call you Laura, though.

Witherspoon pretended to get mad at Kidman, and responded with I dont understand your point.

I dont like your tone. Youre trying to understand something, so it just makes no sense, she quipped.