The film, which is yet to start shooting, has made the studio wary of fans getting too close to the hunky star, Metro.co.uk reported.
According to a US publication, the studio also paid for extra security to protect Hunnam during the launch of the new series of ‘Sons of Anarchy.’
Photos: 'Rock On 2' stars Farhan, Shraddha on 'Yaaron Ki Baraat'
Photos: Ajay Devgn launches 'Shivaay' comics at Mumbai Comic Con
Photos: WWE star Sheamus and John Abraham clash in Mumbai
Umesh Yadav's birthday: Indian cricketers and their tales of struggle
Photos: Raveena Tandon, husband Anil Thadani's dinner date in Bandra