os on ▁as ▁Ben , ▁Rock y ' s ▁best ▁friend . ▁Ben ▁Pia zza ▁as ▁Mr . ▁Sim ms ▁ ▁L . ▁Craig ▁King ▁as ▁Eric ▁Alex andra ▁Pow ers ▁as ▁Lisa ▁Kelly ▁Jo ▁M inter ▁as ▁Lor rie ▁ ▁Tod d ▁Allen ▁as ▁Can uck ▁ ▁Howard ▁H ird ler ▁as ▁St ick man ▁Les ▁D ude k ▁as ▁B one ▁ ▁Production ▁R ust y ▁Dennis ▁sold ▁the ▁film ▁rights ▁to ▁Rock y ' s ▁life ▁story ▁for ▁$ 1 5 , 0 0 0 , ▁most ▁of ▁which ▁went ▁to ▁pay ▁medical ▁b ills ▁for ▁her ▁son ▁Josh ua ▁who ▁was ▁under going ▁A ID S ▁treat ments . ▁She ▁originally ▁hoped ▁the ▁film ▁would ▁focus ▁on ▁Rock y ' s ▁life ▁and ▁int rep id ▁person ality ▁rather ▁than ▁giving ▁equal ▁emphas is ▁to ▁her ▁story , ▁but ▁was ▁won ▁over ▁by ▁Cher ' s ▁role , ▁stating : ▁" Ch er ▁dep icted ▁the ▁way ▁I ▁am ▁very ▁well . ▁I ▁always ▁thought ▁I ▁was ▁perfectly ▁normal , ▁that ▁the ▁rest ▁of ▁the ▁world ▁is ▁n uts ." ▁ ▁In ▁ 1 9 8 4 ▁camp ▁scenes ▁for ▁the ▁movie ▁were ▁fil med ▁at ▁Camp ▁Blo om field . ▁Camp ers ▁and ▁staff ▁got ▁a ▁preview ▁of ▁the ▁finished ▁film ▁at ▁Universal ▁Studios ▁in ▁February , ▁ 1 9 8 5 . ▁▁ ▁Bog dan ov ich ▁had ▁originally ▁intended ▁to ▁use ▁several ▁songs ▁by ▁Bruce ▁Spring ste en , ▁the ▁real ▁Rock y ▁Dennis ' ▁favorite