How to Train Your Dragon from Dreamworks animation will be in theaters March 26, 2010. Jay Baruchel, Gerard Butler, America Ferrara, Jonah Hill, Christopher Mintz-Plasse, Craig Ferguson, Kristen Wiig and T.J. Miller are the voice actors in the film. Itâ��s directed by Chris Sanders and Dean DeBlois. The trailer is below for your enjoyment. I hope they improve on the graphics for the main dragon, as it currently stands it looks out of place with the other characters and background. While it may well be worth going to see if only for the 3D experience it does not look as good as Pixarâ��s recent offerings.