▁French ). ▁ ▁Category : So cial ▁science ▁instit utes ▁Category : Res earch ▁instit utes ▁in ▁France ▁Category : F rench ▁National ▁Centre ▁for ▁Scient ific ▁Research <0x0A> </s> ▁Cham ps ▁is ▁a ▁ 2 0 1 4 ▁document ary ▁film ▁foc using ▁on ▁box ers ▁Mike ▁T ys on , ▁Ev ander ▁Holy field , ▁and ▁Bernard ▁Hop kins . ▁The ▁film ▁had ▁its ▁world ▁premi ere ▁at ▁the ▁Trib eca ▁Film ▁Festival ▁on ▁April ▁ 1 9 , ▁ 2 0 1 4 . ▁ ▁Star z ▁released ▁the ▁film ▁on ▁March ▁ 1 3 , ▁ 2 0 1 5 , ▁in ▁a ▁the atr ical ▁release ▁and ▁through ▁video ▁on ▁demand . ▁ ▁Cast ▁▁ ▁Mike ▁T ys on ▁ ▁Ev ander ▁Holy field ▁ ▁Bernard ▁Hop kins ▁ ▁Mark ▁Wahl berg ▁ ▁Den zel ▁Washington ▁ ▁Ron ▁Howard ▁ ▁S pi ke ▁Lee ▁ ▁Mary ▁J . ▁Bl ige ▁▁ 5 0 ▁Cent ▁ ▁Na az im ▁Richard son ▁ ▁Re ception ▁ ▁Rotten ▁Tomatoes , ▁a ▁review ▁aggreg ator , ▁reports ▁that ▁ 6 5 % ▁of ▁ 2 6 ▁survey ed ▁critics ▁gave ▁the ▁film ▁a ▁positive ▁review ; ▁the ▁average ▁rating ▁is ▁ 6 / 1 0 . ▁Met ac rit ic ▁r ated ▁it ▁ 5 9 / 1 0 0 ▁based ▁on ▁ 1 3 ▁reviews , ▁which ▁indicates ▁" m ixed ▁or ▁average ▁reviews ". ▁ ▁Edd ie ▁C ock rell ▁of ▁Vari ety ▁called ▁it ▁" s lick ▁but ▁cl