Producing a film with a smartphone is not impossible if there is certain talent and the necessary accessories required. Many Hollywood films are shot on iPhone, such as those directed by Steven Soderbergh or Zack Snyder. Most recently, a large-scale Hollywood film has been confirmed as being shot entirely on an iPhone.
This film is 28 Years Later, which is the third film after 28 Weeks Later. Danny Boyle and Alex Garland return for this film after the success of the first film 28 Days Later. According to the WIRED report, Boyle used several iPhone 15 Pro Max units. The iPhone was chosen because film creators liked the log recording results of this device.
Of course, for films they won't just use an iPhone. The iPhone 15 Pro Max used is connected to a special frame with a professional camera lens such as from ARRI. The development of the film 28 Years also used several action cameras mounted on animals, they were probably GoPros because these animals were called GoatPros.
For those who ask what is the process and how? iPhone 15 Pro and iPhone 15 Pro Max are ready to support 4K ProRes 60FPS Log video recording. For long-term recording, files can be saved directly to external storage via the device's USB-C connection. 28 Years Later is now indirectly the highest-budgeted Hollywood film ($75 million, ~RM331.8 million) shot entirely on smartphones.