I'm glad to see such a positive response in only a few days! As far as the film festival goes, we can open it up for discussion & see who's interested...
My thoughts are that tapas/drinks/dinner might be easier to coordinate, taking into account everyone's busy schedules, other obligations, etc. Furthermore, a casual "happy hour" type of get-together might be more inclusive as a first event for the group.
Weekends are generally better for me... I'll go ahead and suggest a few possible dates -- let me know which, if any, work for you.
Saturday 5/5 (Cinco de Mayo... I know, I know, it's a Mexican holiday!)
Jaleo (great tapas & sangria)
Toro Tapas ("asi-asi")
Taberna del Alabardero (best Spanish cuisine in DC. Dining room is a bit expensive, but they have a decent bar scene w/ tapas available)
Andalusia (never been there, but heard good things...)