I have a couple of centerfold sites running at the moment for my metart stuff and the photos are all 170x170.
I actually like the square look for the simple fact that it makes a nice neat page but editing the photos for just the right shot can be laborious.
I don't however have any movie links on those pages but if I do decide to add some at a later date I will build separate pages to accommodate them at the time obviously with a more compatible size.
metcenterfolds.com -
metartcenterfolds.com