Danny Boyle says he filmed '28 Years Later' with iPhones, drones, and a goat

Danny Boyle filmed "28 Years Later" using an iPhone rig.

Sony Pictures Releasing

• Director Danny Boyle said he strapped a camera to farm animals while filming "28 Years Later."
• The director used iPhones and drones to shoot footage because they were lightweight.
• Boyle said this also made filming "way, way cheaper."

Many Hollywood directors use expensive cameras to film their blockbusters. Danny Boyle's approach to filming his zombie sequel "28 Years Later" was a bit more… experimental.