ThesubtitleofJean-MarieStraubandDanièleHuillet’sfirstfeature,from1965,“OnlyViolenceHelpsWhereViolenceReigns,”suggeststhefiercepoliticalprogramevokedbytheirrigorousaesthetic.Thepretextofthefilm,setinCologne,isHeinrichBöll’snovel“BilliardsatHalfPastNine,”whichtheystripdowntoahandfulofstarkeventsandfilmwithaconfrontational...