ALERT: ET Behind The Scenes Of 'Kiss-Kiss, Bye-Bye'

See Also: 'Kiss-Kiss, Bye-Bye' Episode Guide

Entertainment Tonight recently visited the set of CSI to get the official scoop on this week's new episode "Kiss-Kiss, Bye-Bye."

In a segment that will air tonight, ET's Jann Carl will unveil her interview with Faye Dunaway, who will guest star in the episode as an ex-dancer with mob ties who hosts a party where, in true CSI fashion, someone ends up dead.

Just like last season's guest director Quentin Tarantino, Dunaway revealed she's a huge fan of CSI. "I have been a fan since the beginning. I love the writing on this because it is very hip."

But the admiration works both ways. William Petersen, who plays front-man Gil Grissom, said he's been a fan of the actress since he was a child. "I snuck into Bonnie and Clyde as a kid. I was underage. I wasn't supposed to be there. It's unbelievable to work with her. I'm just watching saying this is fabulous, look how good she is."

Dunaway and Petersen's mutual admiration will be explored in "Kiss-Kiss, Bang-Bang," when Grissom's interrogation of her character turns into a little one-sided flirting affair. "She's charmed by Grissom," Donaway said of her character. "She tries to charm him, but you don't get far charming Grissom."

Tune into tonight's Entertainment Tonight to see a video of this segment. For a special preview of the interview, visit ET's official website.

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