where can i watch all movies in spanish with spanish (!!!!) subtitles?
they can also be translated from english to spanish too.
I use Netflix for this and turn on Spanish subtitles with my Apple TV. Some DVDs have both a Spanish audio track and Spanish subtitles. Be aware that sometimes the audio and subtitles don't match for some DVDs. Close-captioning intended for native speakers is best.
Availability of Spanish for both Netflix and DVDs may vary depending on what country/region you are in. I'm in the US so there is a lot of content in Spanish.