Say It Isn't So (2001)

Say It Isn't So (2001)

They share a love. They share a passion. And they might share DNA. 2001-03-10 United States of America 95 Min. PG-13
4.702 163 votes

Overview

Boy meets girl; boy falls in love (and had wild, non-stop sex) with girl; boy loses girl... when they discover they are brother and sister! But when he learns that he's the victim of the ultimate case of mistaken identity, the lovesick young man -- whom everyone still thinks is after some taboo thrills -- must race across the country to stop her from marrying another man.