Seems, it's turning out to be one happy filmy journey.
Big B has shared some pictures of himself riding an old-style scooter, with Nawazuddin Siddiqui seated behind.
The superstar also shared this heart-warming note about his Kolkata experience:
Sujoy Ghosh, the creative producer of the film, has posted a similar pic on Twitter and titled the two actors as 'the odd couple'.
Sujoy has also posted a pic of Vidya Balan, who has a special role in the film (Vidya Balan Turns Cop For Amitabh-Nawaz Thriller, October 29).
Image Source: facebook/AmitabhBachchan/twitter/sujoy_g