Steven Spielberg's World War I epic "War Horse" is the top-selling DVD and Blu-ray in the United States, Rentrak reported Thursday. Coming in at No. 2 on the DVD and Blu-ray sales roster for the week ending April 8 is "Alvin and the Chipmunks: Chipwrecked," followed by "Hop" at No. 3, "We Bought a Zoo" at No. 4 and "The Muppets" at No. 5. Rounding out the top tier are "The Girl with the Dragon Tattoo" at No. 6, "Game of Thrones: The Complete First Season" at No. 7, "The Adventures of Tintin" at No. 8, "Happy Feet Two" at No. 9 and "Puss in Boots" at No. 10. The No. 1 DVD rental for the week ended April 7 is "We Bought a Zoo." "War Horse" is No. 2, "The Girl with the Dragon Tattoo" is No. 3, "The Sitter" is No. 4, "Hop" is No. 5, "The Descendants" is No. 6, "Alvin and the Chipmunks: Chipwrecked" is No. 7, "Immortals" is No. 8, "Jack and Jill" is No. 9 and "Extremely Loud and Incredibly Close" is No. 10.