Play One Movie On Top of Another?

[Sivakatirswami]

Another one of my "ask for the moon" queries:

Is it possible to have one movie playing as a background object and 
another movie playing on top of it at the same time? Actually what I 
would really like is to have a movie running in the background (layer 1) 
looping with no controller or border;  an animated GIF running on top of 
that (Layer 2:) where frames are presented under script control), and 
yet another Quicktime moving on top of that (layer three, topmost, ) 
with a controller that the user can use to stop) I tried, but I don't 
think it works, but before i give up, I just thought I would ask.

User could stop the top most moving, scripted buttons sitting on top of 
the background movies are active...

Context is:

Having some branding motion graphics subtly playing in the background 
and then present a specific movies on top. The player on top might 
change out to other movies, with user interaction from a pull down menu 
or static side bar of links which dynamically reset the topmost player's 
URL to a remote.SMIL file. i.e. different  user events are happening... 
underneath it  all the motion graphics movie is running continuously on 
a loop.

I'd rather not have to go into Final Cut Pro and Shake to composite all 
this if there's a way in Rev to just have movies running on top of each 
other... 

Alternate strategies, possible directions to go with, etc.,  welcome.  
This is in the brainstorming stages...or maybe it's a matter of "video 
cards just can't do that!"

There's ways to do this with SMIL where we could leave a blank region in 
the center and run motion graphics in other /seq 's round it in the 
areas outside a central blank region, and of course QT renders this in a 
single video layer, but, it would be a lot easier in Rev if such 
layering of animated objects is doable.

TIA

Sivakatirswami