**_“I’m just trying to stay alive… and stay human”_** This marked the reteaming of director Stuart Rosenber and Paul Newman after their success with “Cool Hand Luke” 2½ years earlier. Robert Stone wrote the script based on his 1967 book “A Hall of Mirrors,” which fleshes out several characters involved with the top issues of the era: rightwing-ism, civil rights, women’s liberation and the counterculture. Newman stars as a disillusioned alcoholic who gets a job in The Big Easy working as a disc jockey at Conservative radio station, while Joanne Woodward plays his new gal pal, who honestly…