‘Raaz 3′ has been a trying film for Bipasha Basu. The film apparently tells the tale of an older actress who finds herself losing out on films and in love with a younger actress. She then resorts to black magic to get rid of her competition. Bipasha apparently identified with the role, breaking down on set after shooting an emotional scene. She reportedly also managed to terrify herself with her wicked cackle. So, it’s not surprising to learn that she is apparently exhausted and has managed to lose 3 kg during the filming of the movie. Maybe, Bipasha now needs to do something like ‘No Entry’; laughter, they say, is the best medicine.