IŽam interested to see good or satisfactory documentaries about the military aviation during the Spanish Civil War. Both in English and in Spanish are OK. In other languages also OK if English or Spanish subtitles are available. Italian and German goes also, although I understand them only little.
My findings:
http://www.youtube.com/watch?v=OBCW4x5h2Mo - Spanish documentary regarding a restored I-16 "Mosca"
http://www.youtube.com/watch?v=SxE6UzuN9H4 - Italian Luce film with propaganda nature featuring Aviazione Legionaria. More similar Luce films can be found at their archive website:
http://www.archivioluce.com/archivio/
These have some interest because they were made during the Spanish Civil War and thus have some authenticity when it comes to planes and pilots. Also the quality of old Italian film footage is quite good.