In mid-March 1953, Buckmaster visited Vivien Leigh, who was filming "Elephant Walk" in Hollywood and had rented a mansion on Hanover Drive, while Olivier was in Ischia on a break from organising theatrical and film events for the Queen's coronation that summer. Leigh was going through one of her psychotic breakdowns at the time and the studio doctor and psychiatrist had organised round the clock care for her, in which David Niven became involved. After Buckmaster had unsuccessfully attempted to persuade Leigh that they could fly out of an upper window together, Niven called Stewart Granger and asked him to intervene by forcibly removing Buckmaster from the house and driving him back to his hotel.