Jennifer Garner charmed the audience Saturday at the D23 Expo in Anaheim as she presented an early look at The Odd Life of Timothy Green. The movie, due in theaters in 2012, stars Jennifer and Joel Edgerton as a couple who learn they can't have children of their own. One night after getting the sad news, the pair crack open some red wine and start listing the qualities they'd hope for in a child, and their dream of being parents finds a strange way of coming true. Jennifer said: "I just fell for the story. I loved the magical element to it." She also told the crowd that, as a mom, she liked the message of valuing what's different about every kid. The Odd Life of Timothy Green was one of several films previewed at the Disney Expo this weekend. The studio also shared early footage from The Avengers and John Carter, which stars Friday Night Lights alum Taylor Kitsch. Pixar presented its 2012-2014 slate, Jason Segel stopped by to talk about The Muppets, and fans got a peek behind the scenes of Oz: the Great and Powerful. Oz is currently filming in Detroit, so James Franco and his costars couldn't make it to California for this weekend's festivities. Despite it, director Sam Raimi sent a video message and shared a look at James in costume filming a scene opposite Michelle Williams, who — along with Rachel Weisz and Mila Kunis — plays one of the witches of Oz.