Dream Ghost

I had a dream where I was sitting in a theatre with friends when the picture shut off and lights came up and this ghost came through the screen and we thought it was part of the movie but it just kept coming toward us slowly in full light. I thought it looked like it should be screaming or something but everything was dead silent and we just watched this thing approach dumbfounded. Then I tried to yell but no sound came out, then I woke up.