从来都不被期待的无名高中吹奏乐部，在一名教师的指导下，以全国顶点的“音乐甲子园”为目标演奏出灵魂的合奏。有些梦一个人无法完成，有些喜悦需要有人分享，这是一个超越时代界限，直击人心的故事。

LuluandJudyGeesoncontinuetheirearlierrolesandcometothefarewellparty.Thackerayannouncesthatheisleavingforaninner-cityschoolinChicagowherehewillteachagain.InChicago,hemeetsaformercolleaguewhoistheprincipaloftheschool.ThackeraylearnsthatthereisanAclasswithgoodstudentsandanH(for"horror")classfortheno-gooders.HeconvincestheprincipaltolethimtaketheHclassasaHistoryteacher.HisnewpupilsareHispanic,BlackandWhitekidswhoarenoisy,unrulyandengagedindestructivebehaviours.LikeinLondon,hestartsbyteachingthemsomemanners.HeaddressesthemasMrXorMissY,andexpectstobecalledMrThackerayorSir(hencethetitles).　　Littlebylittlehelearnstheirpersonalstories:Wilsieisagangleaderwhoprotectshisyoungerbrother.Anotherisablackfemalewhobattlesagainstdoubleprejudice.Thewhitekidisgrowingwithoutparentsandhidesthistoavoidbeingfostered.　　WealsoknowabitofMrThackeray'sstory.AsateenagerinGuyana,hefellinlovewithaChicagogirlwhosefatherhadcometobuildamall.TheylostcontactandhewenttoBritaintostudy,becameateacherandgotmarried.Heisnowawidowerbutdecidedtotakethisteachingopportunitytofindhisearlierlove.　　Atschoolhesetsouttoteachthesetroubledkidsoftheirtruepotentialiftheytaketheirfateintheirhands.Heteachesaboutthenon-violentresistanceofthehistoricfightersofcivilrights.WhenhediscoversWilsiesmugglingagunintotheschool,heconfrontshimandconvinceshimtoyieldthegun.MrThackeraydeliversittotheschoolpolicemanasafoundobject.　　Later,thepolicepressureshimtogivethenameofthearmedkid,sincethegunwasinvolvedinacopkilling.Herefusestogiveupthenameofthestudentandhastoleavetheschool.　　Meanwhile,oneofhispupilshastakenajobinanewspaperanddecidestoinvestigateontheoldChicagoloveofThackeray's.Thegirlarrangesanappointmentforhim.Thackeraymeetsthesonofhisformerloveinahospital.Hismotherisill.Thackeraylearnsthatshelovedhimbackbutherfatherretainedallhisletters,becauseshehadgottenpregnant,sothatyoungmanhehadjustmetishisson.　　ThackeraylearnsthatWilsieishiddenbecausehethinksthatthepoliceareafterhim.HisbrothertakesThackeraytothehideawaytoexplaintherealsituationandavoidthatWilsieruinshislife.Throughcourageandtalking,theteacherconvincesWilsietoyieldhisnewgunandconfrontsarivalgangthathadcometofightWilsie.Wilsieandthefriendwhohadgothimthegunexplainthemselvesattheprecinct.　　Thekidshavebeendoinga"standin"andforcetheprincipaltoaccepttheirbelovedteacherback.　　UnliketheBritishfilm,thereisnoinfatuationwithhimamonghispupils,butafellowteacher(SaundraSantiago)admireshim.　　Thefilmendswiththegraduationceremonyanddance.MrThackerayannouncesthatheisnotgoingbacktoBritainbutstayingatChicagototeachthenewgeneration.　　--Wikipedia

黑人影帝西德尼·波埃特脍炙人口的名作之一，他饰演一名中学教师，应聘到伦敦的公学任教，学生都是喜欢惹事生非的顽劣青年，甚至有人向他下面挑战。他施展浑身解数感化这群坏学生，终于赢得了应有的尊敬。