▁two ▁cars . ▁The ▁most ▁obvious ▁cases ▁are ▁when ▁round ing ▁curves : ▁once ▁when ▁first ▁moving ▁forward ▁after ▁being ▁det ached , ▁and ▁later ▁when ▁Anthony ▁has ▁just ▁figured ▁out ▁the ▁hij ack ers ' ▁plan . ▁ ▁D iffer ences ▁from ▁the ▁novel ▁ ▁Since ▁the ▁film ▁was ▁produced ▁much ▁later ▁than ▁the ▁original , ▁there ▁are ▁also ▁add itions ▁to ▁the ▁film ▁that ▁did ▁not ▁exist ▁in ▁the ▁original . ▁For ▁example , ▁one ▁of ▁the ▁characters ▁sets ▁up ▁an ▁IBM ▁Think Pad ▁laptop ▁computer , ▁connected ▁wire lessly ▁to ▁a ▁motion ▁det ector ▁that ▁he ▁places ▁on ▁the ▁track . ▁Later ▁in ▁the ▁film , ▁another ▁character ▁views ▁the ▁screen ▁to ▁see ▁an ▁approaching ▁person , ▁whom ▁he ▁confront s ▁in ▁the ▁tunnel . ▁The ▁r ans om ▁demand ▁in ▁the ▁re make ▁was ▁$ 5 ▁million ▁as ▁opposed ▁to ▁$ 1 ▁million ▁in ▁the ▁original ▁film ▁and ▁the ▁novel . ▁ ▁Home ▁media ▁ ▁In ▁ 2 0 1 2 , ▁T GG ▁Direct ▁released ▁the ▁film ▁on ▁DVD ▁in ▁full ▁frame ▁in ▁a ▁two - pack ▁that ▁also ▁included ▁Run away ▁Train ▁( 1 9 8 5 ). ▁ ▁External ▁links ▁▁▁▁▁ ▁Category : 1 9 9 8 ▁television ▁films ▁Category : 1 9 9 0 s ▁crime ▁drama ▁films ▁Category : 1 9 9 0 s ▁crime ▁thr iller ▁films ▁Category : 1 9 9 0 s ▁action ▁thr iller ▁films ▁Category : 1 9 9 0 s ▁police ▁films ▁Category : American ▁crime ▁drama ▁films