Convergence　and　digitization　are　closely　associated　with　interactivity,　which　will　be　discussed　in　detail.　This　essay　begins　with　the　literature　review　of　interactivity　and　digital　media,　which　will　lead　to　the　ongoing　debate　of　the　strengths　and　weaknesses　of　interactivity　in　the　new　media　era,　say,　the　positive　perspectives　and　negative　perspectives　of　interactivity　in　the　board　range　of　digital　media　forms,　in　a　sense　that　the　development　of　digital　media　technologies　has　not　only　brought　us　Internet　(both　PC　and　Mobile)　as　brand　new　media,　but　also　changed　the　way　traditional　media　present　themselves.　Provided　with　the　debate　of　whether　or　not　interactivity　is　a　positive　perspective　of　digital　media,　this　essay　is　going　to　focus　on　the　question　‘Is　interactivity　a　defining　feature　of　digital　media?’　It　will　be　argued　that,　in　many　cases,　if　not　most,　interactivity　is　a　defining　feature　of　new　digital　media,　but　it　is　hard　and　maybe　impossible　for　interactivity　to　become　a　defining　feature　in　all　sorts　of　digital　media　forms,　for　example,　digital　cinema　productions.　©　2015　Taylor　&　Francis　Group,　London.