Question

If the cinema screen projects real image and we know real image are always inverted then why the movie to be projected is erect(why we dont see film upside-down)?

Answer 1

we don't see the movie upside down because the projector is is configured so that it will show the movie not upside down but in the way we would like to see it or you can think that the film inside the projector is upside down so that when it projects the film on 2 the screen this movie will be correct not upside down