Hi Keri,
What a great idea... are you having popcorn & snacks too? A great way to announce the event is to make "movie posters"... then post it on your community facebook page & have some in your office so prospects can see the cool things you're doing for your residents
Here's an example of a movie poster than FNB did... pretty cool!
As far as movies go, these are some that appeal to all ages:
Disney Classics- Lion King & Aladdin
Big Action- Independence Day & Spider Man
80's Classics- The Goonies & Adventures in Babysitting
PG13 Comedies- 50 1st Dates & The Replacements
I hope this helps! You'll have to keep us posted on how your event goes... and do share pics!
Tara