There's plenty of action-adventure coming your way on DVD this week -- some of it good, some of it bad. On the good side there's DreamWorks Animation's 'How to Train Your Dragon,' a delightfully warm and uplifting tale that gives the folks over at Pixar a run for their animated money. The film uses the voice talents of Jay Baruchel, Gerard Butler, Craig Ferguson, America Ferrera, Jonah Hill, Christopher Mintz-Plasse and Kristen Wiig. On the dark side there's 'Jonah Hex' -- a filmic representation of the DC Comic antihero -- that bombed at the box office. It doesn't fare any better on the small screen. Read on.