ich ed ", ▁although ▁" M arc us ▁and ▁his ▁team ▁make ▁up ▁in ▁subst ance ▁what ▁they ▁fall ▁short ▁of ▁in ▁style ." ▁▁ ▁John ▁De F ore ▁of ▁The ▁Hollywood ▁Re porter ▁wrote , ▁" In ▁his ▁debut ▁doc ▁about ▁super star ▁f igh ters , ▁Bert ▁Marcus ▁offers ▁more ▁soci ology ▁than ▁box ing ▁fans ▁may ▁expect , ▁using ▁mean - stre ets ▁origin ▁stories ▁not ▁just ▁for ▁bi ographical ▁intr igue ▁but ▁to ▁comment ▁on ▁hard ships ▁his ▁subjects ▁faced ▁later ▁in ▁life ," ▁as ▁well ▁as ▁that ▁the ▁film ▁is ▁a ▁" very ▁pol ished ▁doc ▁has ▁more ▁on ▁its ▁mind ▁than ▁action ▁in ▁the ▁ring ." ▁ ▁Neil ▁G enz ling er ▁of ▁The ▁New ▁York ▁Times ▁wrote ▁that ▁the ▁film ▁" ne eds ▁a ▁trip ▁through ▁a ▁cl ich é - rem oving ▁machine ". ▁ ▁Robert ▁A be le ▁of ▁the ▁Los ▁Angeles ▁Times ▁wrote ▁that ▁the ▁document ary ▁experiences ▁" var ied ▁success " ▁but ▁" comes ▁from ▁a ▁place ▁of ▁car ing ▁for ▁an ▁oft - m aligned ▁sport ". ▁ ▁Nick ▁Schl ager ▁of ▁Sl ant ▁Magazine ▁r ated ▁it ▁ 2 / 4 ▁stars ▁and ▁called ▁it ▁" an ▁unf oc used ▁m ish m ash ▁that ▁th riv es ▁only ▁when ▁it ▁fix ates ▁on ▁foot age ▁of ▁actual ▁b outs ". ▁ ▁At ▁Ind iew ire , ▁Kevin ▁Jag ern auth ▁wrote ▁that ▁it ▁" ex am ines ▁what ▁it ▁means ▁to ▁be ▁a ▁man " ▁and ▁" while