The makers of Welcome Back have featured the world's heaviest ring, weighing 64 kilos, in their film.This gold ring, which has found a place in the Guinness Book of World Records, is the one Anil Kapoor gifts to his lady-love. For the shoot, the diamond-studded ring was apparently displayed on a trolley for the first time at the jewellery showroom in Dubai's gold market, where it is originally kept. Says director Anees Bazmee, “There was a huge crowd in and around the market. We canned the shot in one day amidst tight security and ensured the ring was back in the shop's safe-keeping immediately thereafter.“