The Roald Dahl musical adaptation has also extended its run
The show opened in June 2013 with Douglas Hodge as Willy Wonka. Jonathan Slinger became the eccentric chocolate factory owner earlier this year.
Producers have also announced a six month run extension until 3 December 2016. Mendes directed the musical, which has music by Marc Shaiman and lyrics by Scott Wittman and Shaiman. Scottish playwright David Greig wrote the book.
The 1000th performance milestone happened to coincide with Chocolate Week, which takes place between 12 – 18 October.
Charlie and the Chocolate Factory released this mini video last night.
It's the 1,000th performance of #CharlieChoc! We can think of 1,000 ways to celebrate… Hundreds & Thousands!
Posted by Charlie & the Chocolate Factory on Monday, October 12, 2015
Charlie and the Chocolate Factory runs until 3 December