Katrina Kaif & Shahrukh Khan's untitled romantic flick's trailer will be released on film's director Yash Chopra's birthday. SRK plays an Army bomb disposal expert Samar in the film, also starring Katrina Kaif and Anushka Sharma. The untitled film marks Chopra's return to the direction after a gap of eight years and brings together the award winning pair of A R Rahman and Gulzar. The film is scheduled for a Diwali release on November 13.

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