I know her performance gets a lot of backlash on this board (and if you only saw her Tony performance, who can blame you?), but I thought Zeta-Jones had no issue displaying vulnerability during "Send in the Clowns" when I saw her in A LITTLE NIGHT MUSIC.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"