Dynamics are an easy way to overwhelm your machines very quickly when going high-res. For some time I wasn't sure whether we made a mistake going the CGI route, as what passes as photorealistic in a fast action motion scene, does not hold up for a 12 foot banner, especially when you can walk up right up to.
Even with the Mac doing a lot of heavy duty physics lifting, we didn't get around long hours of painstaking detailing work, whether pre- or post-demolition.
Breaking pieces just so,retouching hairline cracks, adding subtle light and shadow to texture or fine dust and motion to have it feel like it's happening right now.
I think those hours have paid off and the art work was enough of a work of art for vmware to go all out with it.