Two Blu-ray releases from Indicator represent shifts occurring in American filmmaking at the end of the ’60s, with Don Siegel’s near-perfect heist movie Charley Varrick (1973) quietly trashing all the rules once imposed by the Production Code and Alan Arkin’s directorial debut with Jules Feiffer’s Little Murders (1971) offering an unsettling, blackly comic dissection of the violence at the heart of American society.