Here's a fun fact: my son was born on the same day as my dad, 55 years later - July 24. They've had a few joint birthday parties, and they were able to throw one in Turks and Caicos, and that was great. Of course, 7 year olds need to have birthday parties with their friends, too... it's basically their primary social event. So this weekend, we threw a backyard movie night with about 25 kids. To do that, you need a projector, a PA, and most importantly, a huge movie screen. Here's our review of the Airblown 12 ft. Inflatable Deluxe Movie Screen .