‘Gravity’ a high-tech piece of minimalist filmmaking (Movie review)

Starting with its nearly 20-minute uncut opening shot of George Clooney and Sandra Bullock floating in space making repairs on a scientific satellite, the entire hour and 40 minutes of “Gravity” is packed with “How’d they do that?” filmmaking. Courtesy of writer-director Alfonso Cuaron, who also helmed the third and best “Harry Potter” film and the