What happened was, I was in LA.

visiting a boyfriend, she recalled onThe Kelly Clarkson Show.

Just as she was leaving, the casting director called her name.

Julianna Margulies changes an IV drip in a still from ‘E.R.'

Julianna Margulies on ‘E.R.‘NBC/Courtesy Everett Collection

I rolled my eyes like, Oh really.

Could you come and read for that?

So I went back in and I read for Hathaway with a lot of attitude.

Julianna Margulies and George Clooney stand together in their hospital uniforms in a promotional photo for ‘ER’

Noah Wyle, Sherry Stringfield, Anthony Edwards, Julianna Margulies, George Clooney and Eriq La Salle inE.R.(NBCU Photo Bank)

And I got the role!

So I guess they do test audiences, and when the character died the whole audience went, Nooo!

Because they loved George Clooney so much.

Margulies previouslymarked the 30th anniversaryofE.R.in September.