From Walt Disney Pictures and visionary director Tim Burton comes an epic 3D fantasy adventure Alice in Wonderland, a magical and imaginative twist on some of the most beloved stories of all time. Johnny Depp stars as the Mad Hatter and Mia Wasikowska as 19-year-old Alice, who returns to the whimsical world she first encountered as a young girl. (Source)
Thanks to Pile-Poil for providing this. Apparently this is an extended trailer with 30 seconds of extra footage with a different beginning.
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