It was not easy for Hollywood star Vin Diesel to prepare for the role of a superhero in the upcoming film Bloodshot.

Diesel recently took to Instagram and posted a video about making the film, explaining about the pressure he faced while filming Bloodshot.

Directed by Dave Wilson, the action movie follows super-soldier Ray, aka the superhero Bloodshot, who is brought back from the dead by a corporation through the use of nanotechnology.

"First of all, other than the Groot character, this was the first established superhero I have ever played. So with that comes a certain amount of pressure. The character of Ray Garrison aka Bloodshot is a personality who has handled post-traumatic stress dysfunction and actually represents the idea of the forgotten or discarded soldier. So for me, it was important to research about the sentiment that existed in a few of our veterans, and Bloodshot specifically has been the military's favourite superhero," Diesel said.

Sony Pictures Entertainment India will release Bloodshot on March 13 in the country.