I keep noticing a brief blue flash in recent films - a bright blue line going across the screen, like a laser trace.
It happened towards the end of the new Mary Poppins film.
I have seen it in many other films now - often in action films where you might think it was part of the goings-on, but also in other genres of film.
Any ideas as to what it might be?
It happened towards the end of the new Mary Poppins film.
I have seen it in many other films now - often in action films where you might think it was part of the goings-on, but also in other genres of film.
Any ideas as to what it might be?