Before signing of the film cast, Akshay Kumar was showing lot of interest for playing Mahendra Singh Dhoni's role but, due to less similarity between Dhoni and his looks, the director of the movie Neeraj Pandey politely denied him.
The school shown in the trailer is the actual school of Mahendra Singh Dhoni and the same classrooms and fields have been used.
Mahendra Singh Dhoni's favorite and famous helicopter shot was taught to him by his childhood friend, and school and club teammate, Santosh Lal as shown in the film sadly Santosh passed away in 2013 due to pancreatitis.
Former cricketer and current selector Kiran More had trained Sushant Singh Rajput for the role to play Mahendra Singh Dhoni.
As you can see in the film, The Yamaha RX100 was Mahendra Singh Dhoni's first ever bike which he got for Rs 4,500 and being away on cricket tours meant the bike needed some attention. MS went on to restore this particular bike to all its glory.