There’s no question that the iPhone 15 Pro Max is among the best phones for videography. Aside from its versatile camera setup that includes a periscope camera, Apple’s post-processing algorithm for videos makes the iPhone 15 Pro Max a viable tool for professional filmmaking. We’ve already seen the iPhone 14 Pro used to film a KPop music video, and the upcoming Hollywood movie 28 Years Later is shot using the iPhone 15 Pro Max. WIRED confirmed that the upcoming Hollywood zombie flick from Danny Boyle was shot using several “adapted” iPhone 15 Pro phones, making this the most high-profile movie to be shot using smartphones.

The principal filming for 28 Years Later recently concluded in August, with details about the film kept under wraps until a particular paparazzi photo revealed the filming set with a rather unusual setup. A closer look at the photo reveals that the camera setup is not your usual high-end modular cinema camera. Instead, it is a heavily modified iPhone that’s mounted in a cage with a lens attachment adapter.

Several people connected to the making of 28 Years Later confirmed this unusual setup to WIRED and added that the iPhone 15 Pro Max was used to shoot the upcoming Hollywood film. Both Danny Boyle and cinematographer Anthony Dod Mantle are not new to using unusual camera setups: back when they shot 28 Days Later in 2002, they used Canon XL-1, which was a prosumer camcorder that had interchangeable lenses and used MiniDV tapes.

While several art films were previously shot using an iPhone, this will be the first time that a Hollywood movie is shot using a smartphone–specifically an iPhone 15 Pro Max. With the iPhone 16 Pro series still fresh from this month’s launch, there’s a lot of reason that getting an iPhone 15 Pro is still great–especially if you’re into filmmaking.