I took a risk by watching a Festival Of Souls entry on my own, at night, with all the lights off. Fortunately, there aren't any 'jump' moments (even though I swear I would have pooped myself if something popped up during that black area between 2:28 and 2:33). Still, this was entertaining and it kept me gripped until the end, and I felt silly for not spotting the obvious 'plot twist'. Some of the animation wasn't great though - I'm not fond of minifigs raising their arms all the way and spinning their hands round 360 degrees to two they're talking. Something more subtle would have worked much better.
Also, I noticed this is available in 'Original' resolution, which is something I was only ever seen on videos that are 4000 pixels wide - what's the resolution on this?