Fully occupied on labour day

Picture speak a thousand words.
Yea I'm heading for the premier screening of Star Trek - The Future Begins on 1st of May 2009..
o.0 that's like 7 days ahead of the screening date..
Before the screening there will be tons of activities (click image for full view) line up for everyone too and prizes to be given away..
It will be one hell of a break during labour day.. Hoping to meet other blogger there..
By the way there is this dress code: Smart Casual..
Can someone suggest me how does smart casual look like? Thank a million