He's only 5'11'?
He looks taller...
shareIt's possible. Height is actually a bit fungible. People are actually a bit taller in the morning than at night after they've had gravity pushing them down all day. No, I'm not joking, astronaut Mark Kelly who was in the International Space Station for about a year and had little or no gravity on him for that time returned to earth a full two inches taller, though I'm not sure if that would last.
It also varies with the person. I had a physical therapist tell me that I had very loose tendons once, and I notice that the difference in my height can be up or down a full inch every time I try to measure myself.
Still, like I said, Kinnaman is listed as being 6'2", and he towered over Eastwood in a very noticeable way throughout the movie.
I'm so ugly...that's ok 'cause so are you.