There is a funny montage of movie and TV clips on YouTube in which variations of the phrase "you don't get it, do you" are used. Sometime after I watched that video I saw a 1959 episode of Bat Masterson entitled "Wanted: Dead." In it actor John Dehner said to Gene Barry, "You just don't get it, do you Masterson? They all killed that boy." I laughed out loud and then wondered just how long this phrase has been in use.
What is the earliest use of the phrase "You [still/just] don't get it, do you?" in movies and television?