Play AVI files as cut-scene... in BGE - HOW?

[jmdeschamps]

Blender Game Engine does not seem able to just play an AVI clip
file...

I want to play these files as cut-scenes in a game - subprocess it to
the OS, and continue on return seems a good solution - but so sorry,
it's been a while since I've delved in such places... I need a
refresher.

Must be platform independent (or platform *adjustable* ;-) )
Continue script execution only after it's over (in due time or passed
over by user)
Must be configurable to adjust ourput screen and stuff like that...

Any hints out there

Thanks in advance!