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Currently you are able to watch "Say It Isn't So" streaming on Starz Apple TV Channel. It is also possible to buy "Say It Isn't So" on Apple TV, Amazon Video, Google Play Movies, YouTube, Vudu, Microsoft Store, AMC on Demand as download or rent it on Amazon Video, Google Play Movies, YouTube, Apple TV, Vudu, Microsoft Store online.
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.
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