Production has commenced on location in Hawaii, the United Kingdom and Los Angeles on Walt Disney Pictures’ and Jerry Bruckheimer Films’ sweeping comedy adventure “Pirates of the Caribbean: On Stranger Tides,” directed by Rob Marshall (“Chicago”), the fourth entry in the blockbuster franchise which has already reaped $2.7 billion in worldwide box office from the previous three films, and the first to be filmed and presented in Disney Digital 3D™. The film is slated to open May 20, 2011.