Celebrity Chas, Camilla: Round III By People Staff Published on March 9, 1999 12:00 AM Share Tweet Pin Email Prince Charles and Camilla Parker Bowles stepped out together in London Thursday night — their third public outing in nine days. The couple’s date at the Royal Festival Hall was a “celebration of their freedom,” said an aide, according to British press reports. The evening was also a further sign that Charles and Camilla are feeling increasingly confident about appearing together in public. They reportedly hope that their appearances together will cause less and less of a stir in the media as time goes by. The concert attended by Charles and Camilla was by the Philharmonia Orchestra, featuring a recital by Evgeny Kissin of Rachmaninov’s Piano Concerto No 2 — the music popularized in director David Lean’s 1945 film classic, “Brief Encounter.” The film, starring Celia Johnson and Trevor Howard, told of an illicit (yet chaste) affair involving a middle-aged, married woman forced to choose between her husband and her would-be lover.