Culture | FilmDVD and Blu-Ray releases Steve Morrissey2 November 2012Katy Perry: Part of Me(Paramount, Cert PG, Blu-ray/DVD)Lollipops aloft for a film that’s partly a concert doc, partly a rags-to-riches biography but mostly an essay on the cost of life on the road for the queen of cartoon pop.Killer Joe(Entertainment One, Cert 18, Blu-ray/DVD)Director William Friedkin returns to form and hands a decent role to Matthew McConaughey as a dead-eyed contract killer menacing a family so dim that this surely must be a hellishly black comedy.King of Devil’s Island(Arrow, Cert 12, Blu-ray/DVD)Borstal drama, Norwegian-style, with Stellan Skarsgård lending box-office clout and a cast of unknowns delivering a gripping tale of hardship with flavour and power.MORE ABOUTAlan ParkerBiopicsCinemaDVDsFilm DirectorsParamount Pictures