1. A method for a device to create a first-person documentary, the device comprising a first camera to capture an image-taker and a second camera to capture a scene, the method comprising: simultaneously taking live images with the first and the second cameras; generating a single stream in real-time by combining the live images taken by the first and the second cameras; providing an interface for the image-taker to enable real-time inclusion and exclusion of the live images taken by the first camera; when a first input for the real-time exclusion is received, generating the single stream by excluding the live images taken by the first camera from the single stream; when a second input for the real-time inclusion is received, generating the single stream by including the live images taken by the first camera in the single stream.