Pembroke Castle, the castle with the large tower in the film, was inherited by Richard II following the death, in a jousting accident, of its owner John Hastings in 1389. Pembroke Castle was the birthplace of King Henry VII in 1457.
James Purefoy, who plays Thomas Mowbray, was in A Knight's Tale as the Black Prince of Wales, Richard II's father.
Rory Kinnear (Bolingbroke) and Tom Goodman-Hill (Scroop) appeared together in The Imitation Game (2014) as the police detective and his sergeant. David Bradley and Clémence Poésy, who share a scene in this play as the Gardener and the Queen, both appeared in Harry Potter and the Goblet of Fire (2005) and other films in the Harry Potter franchise.