It will be at the Kirkland Performance Center. Here's the info:
"In gleeful anticipation of the September premiere of Serenity, KPC offers a sampling of the series that started it all. The evening will feature four Firefly episodes on our big big screen: Serenity parts 1 &
2, Out of Gas and Ariel, plus a sing-along, giveaways, a costume contest, Serenity merchandise from Universal and a viewing of the latest Serenity trailer."
It starts at 7:00pm and will theoretically go until 11:00pm or midnight. The cost is $6.50 a ticket.