"Israel is more than grapefruit and soldiers," said Assi Dayan at the opening of Seret, the London Israeli Film festival on Sunday evening. Yet his films have done much to show the existential impact of militarisation upon Israeli society, and chart the collapse of early idealism. In 1967, he played the film-star-handsome Palmach commando in a portrayal of kibbutz life amid the sun and barley. But in 1976, two years after his famous father, the eye-patched tank general Moshe Dayan, finished as minister of defence, he directed a cult parody of the army as full of fools and swindlers. And then, in 1993, a grim story of drunken Israeli soldiers murdering the occupants of a Tel Aviv bar. And finally, in 2011, Dr Pomerantz, a tragic farce about a broken therapist who makes a better living by charging his clients for the opportunity to commit suicide by jumping off his balcony. All very metaphorical.