A brief synopsis of the episode, courtesy of NBC, follows. Be forewarned, there are spoilers in the description.
First Look at "Smash" Episode "The Movie Star," With Uma Thurman
"Bombshell is turned upside-down by the arrival of movie star Rebecca Duvall (special guest star Uma Thurman)," according to press notes. "Karen (Katharine McPhee) and Ivy (Megan Hilty) are drawn into an uneasy alliance against their new rival -- but can they overcome their history? The romance between Tom (Christian Borle) and Sam (Leslie Odom, Jr.) heats up, while Julia (Debra Messing) and Frank (Brian D'Arcy James) must put aside their differences to address a family crisis. Dev (Raza Jaffrey) faces a big decision." Anjelica Huston and Jack Davenport also star.
For more information visit www.nbc.com/smash.