<span class=normal>One of the most intriguing and challenging sequences was creating a London backdrop. Director of Photography (DOP) Anil Mehta shot the sequences against chroma backgrounds as if it were the actual location in terms of lighting and camera movement, so the visual effects had to match seamlessly with this approach. The challenge was to create a backdrop of London that worked well for each of the shots. Working with multiple plates, the team created a cityscape with buildings and bustling streets full of traffic and people. The team match-moved the live camera to achieve a highly realistic background movement that took care of various technical aspects such as depth of field and parallax. </span><BR><BR><br><p class=clear>&nbsp;</p><amp-img width=1.33 height=1 layout=responsive src=https://images.bollywoodhungama.com/img/feature/12/aug/cocktail03.jpg></amp-img>