Los Angeles, Oct 11 (TIWN) Actress Kerry Washington has joined the big-ticket cast of Meryl Streep and Nicole Kidman in Ryan Murphys "The Prom".

"The Prom" focuses on the experiences of an Indiana lesbian teenager who wants to bring her girlfriend to her school's big dance. Instead, they are banned from attending as a couple, prompting a cast of Broadway eccentrics to descend on the small-town home to help fight the injustice.  Streep is set to play two-time Tony winner Dee Dee Allen and James Corden will play Barry Glickman. They are Broadway co-stars who see their Eleanor Roosevelt musical get bashed by The New York Times, sparking a crisis that prompts them to try to make over their image by adopting a cause.