enty ▁five ▁local ▁residents ▁were ▁cast ▁to ▁ride ▁horse back ▁as ▁Royal ▁Canadian ▁Mount ed ▁Police ▁during ▁the ▁scene . ▁The ▁crew ▁then ▁built ▁cab ins ▁and ▁summer ▁homes ▁along ▁the ▁river , ▁and ▁ 6 0 0 ▁trees ▁were ▁brought ▁in ▁from ▁Lincoln ▁and ▁K alis p ell ▁areas , ▁and ▁plant ed ▁in ▁a ▁day ▁and ▁a ▁half . ▁Several ▁ 1 9 2 0 s ▁& ▁ 1 9 3 0 s - era ▁vehicles ▁were ▁r ented ▁from ▁ran ch ers ▁from ▁Con rad ▁and ▁Great ▁F alls . ▁Act ual ▁film ing ▁took ▁approximately ▁ten ▁days , ▁but ▁the ▁production ▁staff ▁reserved ▁the ▁bridge ▁for ▁enough ▁time ▁to ▁allow ▁for ▁production ▁del ays . ▁H undred s ▁were ▁allowed ▁to ▁watch ▁film ing ▁from ▁a ▁nearby ▁field . ▁A ctor ▁Se an ▁Con n ery ▁( J im ▁Mal one ) ▁treated ▁well - w ish ers ▁and ▁fans ▁open ly ▁and ▁cord ial ly , ▁and ▁production ▁was ▁completed ▁shortly ▁after . ▁ ▁Re ception ▁The ▁U nt ouch ables ▁opened ▁on ▁June ▁ 3 , ▁ 1 9 8 7 ▁in ▁ 1 , 0 1 2 ▁the at res ▁where ▁it ▁gross ed ▁$ 1 0 , 0 2 3 , 0 9 4 ▁on ▁its ▁opening ▁week end ▁and ▁ranked ▁the ▁sixth - high est ▁opening ▁week end ▁of ▁ 1 9 8 7 . ▁It ▁went ▁on ▁to ▁make ▁$ 7 6 . 2 ▁million ▁in ▁North ▁America . ▁According ▁to ▁producer ▁Art