Curious Danger (2013)
A boy wanders around outside when he sees something that is curious to him. He goes to the location of the curiosilty which happens to be a lab with unusual and almost alienistic scientific experiments happening. The boy is involved in an experiment which leaves him disoriented, and then finds himself wandering around outside confused as to how he reached this location and what happened to him in the lab.
The appropriation is from The Nature of Sound (1948) which is a video of a "Boy uses his radio equipment to demonstrate how sound is produced and transmitted." (http://www.youtube.com/watch?v=JNBlEagFroU)