an ▁Chron icle . Ch op ra ▁got ▁a ▁fifteen - day ▁break ▁from ▁her ▁other ▁commit ments ▁to ▁train ▁for ▁the ▁film . ▁She ▁re located ▁to ▁her ▁b ung al ow ▁in ▁Go a , ▁where ▁she ▁would ▁train ▁for ▁five ▁hours ▁a ▁day . ▁After ▁comple ting ▁work outs , ▁which ▁included ▁weights ▁and ▁circuit ▁training , ▁she ▁ins isted ▁on ▁training ▁for ▁box ing . ▁Later , ▁box ing ▁was ▁made ▁a ▁part ▁of ▁her ▁daily ▁work out . ▁She ▁was ▁trained ▁by ▁Kom ' s ▁coach es ▁to ▁learn ▁her ▁distinct ▁box ing ▁style . ▁Ch op ra ▁explained ▁that ▁she ▁did ▁not ▁have ▁to ▁act ▁like ▁a ▁box er , ▁but ▁had ▁to ▁become ▁one ▁and ▁said ▁" To ▁learn ▁box ing ▁was ▁a ▁religion . ▁Today , ▁I ▁can ▁play ▁the ▁sport ▁as ▁I ▁know ▁the ▁rules , ▁body ▁post ure , ▁foot ▁work , ▁I ▁can ▁hit , ▁I ▁can ▁defend . ▁I ▁know ▁the ▁game ." ▁ ▁Ch op ra ▁found ▁Mary ▁Kom ▁a ▁very ▁special ▁and ▁personal ▁film ▁due ▁to ▁the ▁insp iring ▁theme . ▁She ▁revealed ▁that ▁she ▁channel led ▁the ▁gr ief ▁of ▁father ' s ▁death ▁into ▁the ▁film : ▁" I ▁started ▁this ▁film ▁at ▁the ▁hard est ▁point ▁in ▁my ▁life , ▁four ▁days ▁after ▁my ▁father ▁passed ▁away . ▁All ▁my ▁gr ief , ▁everything , ▁I ▁have ▁sh oved ▁into ▁this ▁movie . ▁A ▁part ▁of ▁my ▁soul ▁has ▁gone ▁into ▁it ." ▁In ▁an ▁interview