Pirates of the Caribbean: On Stranger Tides the UK on BBC One, it was watched by a total of 5.4 million viewers, making it the third-most watched program that night, according to overnight figures. "On Stranger Tides" earned $241.1 million in the North America and $804.6 million in other countries for a worldwide total of $1.045 billion. It is the 23rd highest-grossing film worldwide, the third-highest-grossing 2011 film, the second-most successful installment of the "Pirates of the Caribbean" series, the eleventh-highest-grossing Disney feature and the third highest-grossing fourth film in a franchise (behind "Jurassic World" and ""). On its worldwide opening weekend, it grossed $350.6 million, surpassing
Pirates of the Caribbean: On Stranger Tides at the 007 Stage on Pinewood. "On Stranger Tides" employed 1,112 shots of computer-generated imagery, which were done by ten visual effects companies. Cinesite visual effects supervisor Simon Stanley-Clamp claimed that the most difficult part was doing the effects in 3D: "Rotoscoping is tricky. Cleaning up plates is double the work, and tracking has to be spot on." The lead companies, with over 300 effects each, were Industrial Light & Magic—responsible for, among others, the mermaids and most water effects—and Moving Picture Company, who created digital ships and environment extensions, such as changing weather and designing cliffs and waterfalls. Filming