‘Sound of Music’ carries over water

Princess Cruises and “The Sound of Music” turn 50 this year, and to celebrate their common golden anniversary, the cruise line will be showing the classic film aboard its 18 ships starting this month.

Passengers can start practicing for sing-alongs and study up for trivia contests about the Von Trapp family. Activities will accompany screenings of the Julie Andrews-Christopher Plummer favorite, which won five Academy Awards in 1966, including best picture. “The Sound of Music” will be shown once on each Princess sailing on the top deck, pool-side “Movies Under the Stars” screens. Screenings with sing-alongs will be held in the Princess Theater.

Princess sails from Los Angeles to Mexico on cruises of various lengths. The line also sails from L.A. to Hawaii, Tahiti and American Samoa on longer itineraries. Info: (800) 774-6237, www.prin cess.com or contact a travel agent.