Shooting the remake of the 1960 western was a difficult task, with the cast and crew having to film on location in the searing heat of the Louisiana summer.
However, Pratt, 37, said he never whined that director Antoine Fuqua was pushing him and his castmates too far as they were being looked after by real-life cowboys, reported Collider.
"There was a lot of tough moments (on set). But we were surrounded by tough people. We're dressed up as cowboys but there were actual cowboys taking care of us... There were cowboys there who don't get the credit or the paycheck and they're there because they're just dudes," Pratt said.