Sure, Julia Louis-Dreyfus is an Emmy-winning actress now ... but even she still gets embarrassed by her humble horror beginnings.

Long before she played Elaine on "Seinfeld," Julia appeared nearly-naked in the amazingly awful movie "Troll." Never seen it? Don't, it's that bad.

And this week, Jay Leno made it a point to remind her of her cringeworthy movie debut.

"We never talked about it and there's a reason for it," Louis-Dreyfus said before Jay rolled a clip ... which prompted her to call him one of her favorite curse words, twice.

Julia says she did the flick because she got a free trip to Rome to shoot it, joking "it's the best moment of my life."

The clip and Julia's reaction to Jay actually playing it are both priceless. Check it out above!

The "Veep" star isn't the only one who started her career in the horror biz -- Brad Pitt, Demi Moore, Jennifer Aniston and many more have all screamed on screen.  

See more stars who started in horror below:

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