I would advise that you be somewhat prepared on the food/water side of things. In my mind, given the large size of the event, there was a rather surprising shortage of food and beverage outlets. That's not to say there aren't any facilities: there was a grill under the bleacher seats and a restaurant/store on main street. However, both have limited hours and if you're tenting and just need a bottle of water for instance, you have a LONG walk to get to said store. There wasn't a single food cart in the vendor area to even grab a bottle of water. This year if I go I'll make sure I'm stocked up on bottled water and food in reserve beforehand in case I get caught out in my tent and hungry after the late night film ends.
Speaking of which....in my opinion - after going to the Expo quite a few times - the Film Festival portion is the main reason I go now; it alone is well worth the price of admission. The introductions to each by witty Austin Vince are awesome also; never afraid to give his opinions, Austin.
And yes - it was COLD the first night!