The filmmaker admitted he didn't know if he was allowed to reveal how the tech giant protects their image by making sure only the good guys are seen with their handsets on screen.
In an interview with Vanity Fair, Johnson said: "I don't know if I should say this or not.
"Apple ... they let you use iPhones in movies but - and this is very pivotal if you're ever watching a mystery movie - bad guys cannot have iPhones on camera."
Shows such as 'Sex and the City' and 'Mission Impossible' have used iPhones for product placement.
The 'Star Wars: The Last Jedi' helmer then quipped: "Oh no, every single filmmaker that has a bad guy in their movie that's supposed to be a secret wants to murder me right now."