That looks like a lot of fun! There are a few outdoor film spots in Baltimore that are free-- you've motivated me to go! My favorite thing about summer is camping and outdoor concerts! I already have 4 shows lined up for August and I can't wait!
We did this last night in our local park. Pity was that it was an English language film dubbed into Hebrew - it ruins it! It was fun all the same. We take the popcorn, drinks and a big blanket and all get to watch together.