@TechConnectify I used to be a projector technician. Once in 1988 the flight I was on said they could not show the movie because the plane landed roughly and the projector was out of line. I had a tweaker (small screwdriver) in my pocket, and with help of my fellow passengers with approval from the flight attendants, I calibrated the projector. I got mad applause and cheering from the other passengers. It was great.