Now back to ESB:
About the walker attack. Okay, maybe what I wrote sounded too ambitious but hear me out. Would it be possible to just isolate a few walkers in the background of earlier footage from the attack, don't even need movement, and put them into the background? You know the shots I'm talking about. There's walkers in the the background doing one thing or another. because they're so massive, they don't need really any movement at all. You could even possibly cut and paste stills into the footage and blend the edges in adn it might work.
The idea for this is that the walker attack is massive and larger than what ESB showed us. The rebels take down a walker, but more keep coming.
Do you have a list put together? I'd be curious to see what you have in mind.