We were up 'til the wee hours of the morning having fun and being entirely ridiculous, joking and visiting, playing charades, and playing with one another's costumes. Speaking of, here are photographic highlights (and, by the by, MANY THANKS to Jay, Erin, and everyone for a fantastic time!):
Me as Obi-Wan Kevmobi. Susan bought a blanket from the thrift store and a bathrobe pattern from Wal-Mart, went home, set up her mom's sewing machine, and taught herself to sew so that she could make me this Jedi robe for my costume. She also made herself an apron for her own costume (below).

Ewan McGregor as Obi-Wan Kenobi in Star Wars
Susan as Cinderella (pre-ball)

Disney's Cinderella

Jay and Erin as Elwood and Jake Blues

Dan Aykroyd and John Belushi as Elwood and Jake in The Blues Brothers

Jesse and Nicole as Spider-Man and Mary Jane Watson. The white stuff on Nicole's jacket is faux spider web. Yes, Spidey webbed all over her before they came to the party.

Kirsten Dunst as Mary Jane in Spider-Man

Tobey Maguire as Spider-Man. Jesse (above) is a dead ringer, wouldn't you say? (Come on, Jess! Where are the tights and codpiece?!)

Rob and Laurie as Dr. Emmett Brown and Marty McFly
Michael J. Fox as Marty in Back to the Future

Christopher Lloyd as Emmett

Missy as Mary Katherine Gallagher and Joey as Ron Burgundy

Molly Shannon as Mary Katherine in Superstar, based on the same character from Saturday Night Live

Will Ferrell as Ron in Anchorman: The Legend of Ron Burgundy

Tammy as Jennifer Aniston (um, "famous movie character"?!) and Mike as Napoleon Dynamite

Jennifer Aniston (she's still not a movie "character," though)

Jon Heder as Napoleon in Napoleon Dynamite

Chen and Ye as pirates (um, yeah)

Keira Knightly, Orlando Bloom, Johnny Depp, and Geoffrey Rush in Pirates of the Caribbean
Ken and Traie as . . . themselves. (Tammy, in regular street clothes, trumps these two for at least pretending to be a movie star, if not a movie character.)
We got some mileage out of Joey's collection of sticky-backed mustaches. Rob is stylin' in a monobrow.
Mike's Napoleon wig also made the rounds. My favorite of all the models, though, is Jesse. This could be next year's Christmas card photo, Jess! (And, again, Spider-Man? Does NOT wear a 3-dimensional Halloween decoration wrapped around a red button-up shirt with blue jeans! Rent the DVDs!)
Before the crowd dispersed, some photog snapped a series of pics featuring the "movie buff" statuettes. Love Laurie's facial expression here!
Can you spot the statuette? Come on, ladies, focus!