In case your 40-pound Collected Works isn't lying right beside you as you read this, "A Midsummer Night's Dream" is the one in which Helena (Flockhart) loves Demetrius -- who only has eyes for Hermia.
Sir Patrick, best known for playing Captain Jean-Luc Picard in Star Trek: The Next Generation, first appeared on Broadway in A Midsummer Night's Dream in 1971 and has recently been seen in Macbeth.