"We shot an underwater sequence (in Talaash) at Pinewood studio in London," revealed Reema Kagti in an interview with me recently. "There are two underwater sequences in the film. We shot out one at a pool in the diving academy in Khopoli. We set an underwater stage there. After we shot out the first sequence there, we had a problem with the visibility in the water, the filtration units were not working the way we wanted them to, so we decided to shoot at a later date," explained Reema on the reason why the underwater sequence was later shot in London.