As weird as it might sounds, yes this was a documentary on the tapes that we all grew up with and the tale of how this revolutionary means helped shape the way we watch films today.
"Rewind This!" is a nostalgic trip to the history of VHS (and Beta) tapes and how this radical idea of home entertainment started, ruled and then slowly died(?). At least in the massive way that it dominated for 15 years, as there seem to be lots of nostalgic VHS affectionates that still collect tapes and not only that but as I discovered through Joss Johnson's documentary, there are still films, filmed exclusively for VHS!
Definitely worth discovering this film!