US - Just in time for Thanksgiving... It's a movie about Christmas.

Four Christmases opened today.

And what makes this movie special is one of the actresses.

Katy Mixon was born and raised in Pensacola and now she's on the big screen.

Katy plays Susan...Vince Vaughn's sister in law in the film.

Her character is 8 months pregnant.

Katy Mixon, Local actress: "It honestly felt like I got an invitation to a dinner party and I went and it was fantastic...it was fantastic. Vince is incredible because he just brings a party anywhere he goes and you want to be part of the party, and I've always looked up to him."

Katy will be busy in 2009.

We'll be seeing her in a H-B-O series and two films.

One called 'All About Steve' co-starring Sandra Bullock and another called 'State Of Play' starring Ben Affleck. 4 Christmases Movie Premiere