Indeedy! Yeah Unreal Engine has a great plugin called Live Link which allows you to use your iPhone (or any other compatible device) to control camera movements, and even do facial mocap, it's really cool tech.
The one thing that I couldn't understand is how it actually tracked the movement of my phone in 3D space, like there's a bit where the camera moves closer to one of the consoles in the video, how is it able to determine that the phone has actually moved in world space? Rotation I can understand (gyroscopes/accelerometers etc) but physical movement.... no clue! It's wizardry I tell you!