This isn't a dream, but it really reminded me of having nightmares as a kid.
I went to the Cinema on Saturday to watch Last Vegas (good film!). Me and the wife usually sit on the far side, halfway up in the cinema, but these seats were taken, so we sat right at the back on the far side.
When I looked at the screen, I felt a really strange sort of "fear" and was completely over taken by a panic and I have no idea why.
When I looked at the screen, if it makes sense, then the proportions didn't feel right... When I was a kid, I used to have nightmares and be completely awake, but in a furious panic. I used to suffer with textures such as thicknesses of my bed covers, the patterns on the walls used to pulsate and change colour (like a kaleidoscope) and I used to have a real problem with spaces between things and proportions - I have absolutely no idea why, and since about the age of 10 have never experienced it since - until I went and sat in those seats. I managed to sit in the seat for about 2 minutes before I just said "I have to move from here" and went and sat in the middle, closer to the screen - where the feeling just completely vanished.
As I said, it's not a dream, but it took me back to being a kid, and feeling these really strange and completely weird, horrible feelings of panic for no reason.
Strange ay?