'28 Years Later' was filmed on an iPhone 15 Pro Max making history as the largest movie ever filmed using a smartphone. Principal photography began on May 7, 2024, in Northumberland, with Anthony Dod Mantle as the cinematographer. Filming wrapped on July 29. The film was shot using an iPhone 15 Pro Max. However, this was aided by many different, expensive attachments, very similar to what Apple did with the introduction of the iPhone 15 Pro Max (in the launching event Apple utilized a $20,000 rig paired with the iPhone 15 Pro Max). Hence, Danny Boyle joins top-notch directors who use smartphones to shoot expensive movies.