THE new 'Twilight vampire movie opened with a massive $283.5 million in worldwide ticket sales over the weekend as passionate fans filled theatres for the beginning of a two-part finale for the hugely popular supernatural love story. The Twilight Saga: Breaking Dawn: Part 1? captured an estimated $139.5 million in the United States and Canada, distributor Summit Entertainment said on Sunday. That ranked as the fifth biggest domestic opening of all time. The movies performance beat studio forecasts for the film, which shows young lovestruck human Bella wedding vampire Edward and becoming pregnant. Summit had predicted as much as $125 million domestically while other box-office analysts had estimated $140 million. Internationally, Breaking Dawn added $144 million in 54 countries over the weekend. The movie cost about $110 million to make. The domestic opening ranked as the years second-highest, behind only the Harry Potter finale over the summer. Harry Potter and the Deathly Hallows Part 2? pulled in a record $169 million during its debut weekend in July. Reuters