thanks for asking.

If you organize your movies in VIDEO_TS folders (search for VIDEO_TS 
to find relevant posts in the forum), Remote Buddy makes it very easy 
for you to launch movies full screen in VLC.

Regarding the second screen, though, this is something Remote Buddy 
can't influence. At least not directly. You could use the Screen 
Settings found in "Main Menu > System", though, to move the main 
screen to your second screen before starting playback. VLC seems to 
open its playback windows on the main screen by default and this 
should make it open its window on the screen of your choice.

Best regards, 
Felix Schwarz