This Unruly: a repository of video cut-ups
The reaction video remix subcategory describes clips where through the use of intercutting an individual or group appear to react to a subject, which could be a person or a thing.
Creator: Michel Hazanavicius and Dominique Mézerette (1992). Ça détourne (ou Le Triomphe de Bali Balo, ou La Splendeur de la honte, ou L'Invasion des pervers polymorphes, ou Le Lapin connaît la musique).
Creator: Carl Reiner (1982). Steve Martin and Humphrey Bogart scene from Dead Men Don't Wear Plaid.
See for more details: http://www.uni-ak.ac.at/culture/withalm/wit-pdfs/wit03_gyoer.pdf