With Disney's D23 Convention starting today in Anaheim, California, fans will be treated to updates on several upcoming projects, including next year's highly-anticipated sequel Alice in Wonderland: Through the Looking Glass. Before the festivities officially get under way, Walt Disney Pictures' Twitter feed debuted the first two posters for Alice in Wonderland: Through the Looking Glass, set to hit theaters May 27, 2016. The one-sheets feature our first look at the return of Johnny Depp's Mad Hatter and Mia Wasikowska as the title character Alice.

Original Alice in Wonderland stars Johnny Depp (Mad Hatter), Anne Hathaway (White Queen), Mia Wasikowska (Alice), Helena Bonham Carter (Red Queen) and Matt Lucas (Tweedledee and Tweedledum) reprise their roles for this follow-up, along with a few new characters. Sacha Baron Cohen portrays Time, alongside Rhys Ifans as Zanik Hightopp, the Mad Hatter's father and Ed Speleers as James Harcourt. Very little is known about the story thus far, except that Alice is on a quest to help the Mad Hatter.

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Also returning are several voice actors, including Stephen Fry (Cheshire Cat), Toby Jones (Wilkins), Alan Rickman (Blue Caterpillar), Michael Sheen (White Rabbit), Timothy Spall (Bayard), Paul Whitehouse (March Hare) and Barbara Windsor (Dormouse). James Bobin (The Muppets, Muppets Most Wanted) helms the film, which revisits Lewis Carroll's beloved stories with an all-new new tale that travels back to Underland-and back in Time.

The sequel has been in post-production since January, so perhaps Disney will unveil the first trailer at the D23 Expo this weekend. The sequel will be part of the Worlds, Galaxies, and Universes: Live Action at The Walt Disney Studios panel on Saturday, August 15, 10:30 am in Hall D23. Other movies set to be presented during that panel are The Jungle Book, Marvel's Captain America: Civil War, Star Wars: The Force Awakens, and there will likely be a few surprises as well.

While we wait for more details on this sequel from the convention, check out these new posters from Alice in Wonderland: Through the Looking Glass, arriving in theaters May 27, 2016. This fantasy adventure will be going up against another highly-anticipated sequel next May, 20th Century Fox's X-Men: Apocalypse. Which of these movies do you think will come out on top?

Alice in Wonderland: Through the Looking Glass Johnny Depp Poster
Alice in Wonderland: Through the Looking Glass Mia Wasikowska Poster