Something is wrong with your configuration, not sure if it is the wires (most likely), or an AVR issue. I have 12 guage for every speaker, and yes Star Wars A New Hope does produce sounds from the surrounds throughout the movie.

ps 20 or 22 guage wire, isn't that the stuff used for twisty ties to seal bread

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85