A new production of Stephen Sondheim and John Weidman's Assassins, which premiered at Off-Broadway's Playwrights Horizons in 1990 and received its British premiere at the Donmar Warehouse in 1992, officially opened at London's Menier Chocolate Factory Dec. 1, following previews that began Nov. 21. 
SOURCE: Playbill at 01:40PM on December 3, 2014