09/26/2012 07:15 am ET Updated Sep 26, 2012

Kaley Cuoco Talks About Getting Pranked By 'The Big Bang Theory' Cast On 'Late Show' (VIDEO)

Kaley Cuoco dropped by "Late Show" to chat up the new season of "The Big Bang Theory," but David Letterman was first a lot more interested in "Quicksand: No Escape." The 1992 thriller had an all-star cast, featuring Felicity Huffman, Donald Sutherland and Tim Matheson. But perhaps most importantly, it featured a hungry young actress named Kaley Cuoco, who was all of six-years-old when the film came out.

Of course Letterman had a clip of the film, even if it took him a moment to recognize Cuoco. Her character was very enthusiastic about the prospect of going for pizza.

On the set of "The Big Bang Theory," Cuoco is more known for taking naps, she shared with Letterman. She talked about what would happen when she woke up. "I open my phone, I have like 20 text messages," she said. "I’m like, oh, I’m so famous! I’m so popular. No! It’s from my cast who are sending me photos of me asleep."

And not just generic photos either. It's of them doing crazy things to her while she's sleeping. Perhaps the cast could put together a nice coffee table book of the photos -- call it "Kaley's Nap Time" -- for charity.

"The Big Bang Theory" premieres Thursday at 8 p.m. ET, while "Late Show with David Letterman" airs weeknights at 11:35 p.m. ET, both on CBS.

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