New releases on Blu-ray and DVD this week include: Tom Hooper’s Oscar winning historical drama, The King’s Speech, starring Colin Firth and Geoffrey Rush; the modern comic remake of Gulliver’s Travels, with Jack Black; the drama Rabbit Hole with stars Nicole Kidman and Aaron Eckhart; plus a look at Mortal Kombat on Blu-ray and Sharpay’s Fabulous Adventure.