The movie "El Laberinto del Fauno" by Guillermo del Toro was set in Spain, with actors well-known in Spanish film, but was created by a Mexican crew (del Toro is Mexican).

In the movie, a Faun often speaks to a young girl who he believes is a princess. He uses a form of speech that I thought was voseo, but which doesn't quite fit what I've read about it [tag:voseo]

For example, the first words the faun speaks (to the Princess) are, "Sois vos", which appears to be voseo.  But he also tells her "tened cuidado", because "os va a vida en ello". This seems to be a use of "vosotros"