LONDON - Warner Bros has developed a Twitter application to promote the new Harry Potter film, 'Harry Potter and the Half-Blood Prince', with which users can cast spells on their followers' Twitter pages.
Users can go to a website, www.harrypottertweet.com/, to enter their Twitter username and password and transform the Twitter pages of their followers.
The new campaign was developed by Quirk eMarketing
Warner Bros has also recently promoted the film with Sky's new green button advertising service, as one of the first brands to trial it.
The push, developed by PHD, premiered preview clips and behind-the-scenes content from the film.
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