The 1939 film The Wizard of Oz is considered one of the greatest films of all time, and is one of several adaptations of L Frank Baum’s 1900 children’s novel, The Wonderful Wizard of Oz.
Kassell won an Emmy for her work on the HBO series, Watchmen, and has also worked on Vinyl and The Leftovers.
Baum’s characters have been reprised on screen in 1985’s Return to Oz and 2013’s Oz the Great and Powerful as well as in Broadway musicals The Wiz and Wicked.
“I am incredibly honoured to join Temple Hill and New Line in bringing this beloved classic to the screen,” Kassell said in a statement.