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To celebrate the release of The DUFF (Cert 15A) in cinemas now, we have a The DUFF movie poster SIGNED by Bella Thorne to give away! 

The DUFF tells the story of frumpy high-school senior Bianca (Mae Whitman) who has a rude awakening when she learns that her classmates secretly know her as the DUFF - designated ugly, fat friend - to her prettier and more popular pals. Desperate to reinvent herself, Bianca enlists the aid of Wesley (Robbie Amell), a charming jock.
In order to save her senior year from becoming a complete disaster, Bianca must find the confidence to overthrow a judgmental student (Bella Thorne) and revolutionize the school's social order.
To enter, all you have to do is answer this question:
What Disney Channel show is Bella Thorne most known for?
Post your answers below, and good luck!