https://www.theguardian.com/film/2017/nov/12/hedy-lamarr-film-documentary-wifi-bluetooth-susan-sarandon?ns_mchannel=email&ns_source=newsdaily_newsletter&ns_campaign=NEWS_NLB_Wk46_Mon_13_November&ns_linkname=bbcnews_lamarr_newstech_lamarr&ns_fee=0