Will it be in English or French? And will it be under 21 friendly? I'll be visiting Paris at that time (I'm living in Madison, Wisconsin), and would love to stop by.
Do not hesitate to contact us before the event if you want more information.
And concerning the alcohol, no worries.
Needless the say, the French have no such weird rule.
Mais alors avec modération, n'est-ce pas.