Conversation so far:
Did anything happen to Laurence Olivier in 1968 or 1969?
In 1968, Laurence Olivier agreed to serve for a second five-year term as director of the National Theatre because of bureaucratic delays in the construction of the new building.
What was Laurence Olivier serving a five-year term for?
In 1968, Laurence Olivier agreed to serve for a second five-year term as director of the National Theatre
What happened during Laurence Olivier's time as director of the National Theatre?
In his decade in charge of the National, Laurence Olivier acted in thirteen plays and directed eight.
Did Laurence Olivier do anything else at the National Theatre before or after Amphitryon?
In June 1970, Laurence Olivier became the first actor to be created a peer for services to the theatre
Who did Laurence Olivier play in his other stage roles besides Shylock in The Merchant of Venice?
Laurence Olivier played James Tyrone in Eugene O'Neill's Long Day's Journey into Night, Antonio in Eduardo de Filippo's Saturday, Sunday, Monday and John Tagg in Trevor Griffiths's The Party.

Question: was there anything important about some of the roles he played?
Self-contained rewrite: Was there anything important about some of the roles Laurence Olivier played between 1968 and 1974?