when was pirates of the caribbean 4 made
Pirates of the Caribbean: On Stranger Tides Writers Ted Elliott and Terry Rossio first learned of Powers' novel On Stranger Tides during the back-to-back production of Dead Man's Chest (2006) and At World's End, and considered it a good starting point for a new movie in the series. Pre-production started after the end of the 2007–2008 Writers Guild of America strike, with Depp collaborating with the writers on the story design. Principal photography rolled for 106 days between June and November 2010, with locations in Hawaii, the United Kingdom, Puerto Rico and California. Filming employed 3D cameras similar to those used in the production of the 2009 film Avatar, and ten companies were involved with the film's visual effects. Following inflated production costs it is currently noted as the most expensive film ever made with a net budget of $379 million.