This is the only Shakespearean movie in which all four leading actors and actresses (Sir Laurence Olivier, Dame Maggie Smith, Frank Finlay, and Joyce Redman) were nominated for Oscars.
This is the only Shakespearean theatrical film in which Laurence Olivier appeared but John Laurie didn't.
At 1 hour, 30 minutes and 43 seconds, Frank Finlay's performance is the longest ever Oscar nominated for Best Actor in a Supporting Role. It is not the longest performance in the film, however, since Laurence Olivier's is three minutes longer.
Theatrical movie debuts of Sir Derek Jacobi (Cassio) and Sir Michael Gambon (Senators-Soldiers-Cypriots) (who appeared with Dame Maggie Smith (Desdemona) in the Harry Potter film franchise).
Because this was a nearly exact filming of a stage production which featured little music, the roadshow release of this movie does not make use of an overture, intermission music, or exit music, standard features of the widescreen roadshow releases which were common from the mid 1950s to the early 1970s.