Ahh – so when the video is finished, it then starts playing again on scroll. I see that – will see what we can do.
In regards to the intro animations, there is a JS error on your site, looks like a potential conflict – try disabling any other plugins, and also disable the performance options in the new swift framework options panel.
Can you please provide the contents of that page for us to check locally? http://pastie.org/
– Ed