Spoiler alert!

Could Samantha Jones be walking down the aisle in the Sex and the City sequel?

Kim Cattrall was spotted wearing a gorgeous sleeveless wedding gown -- and Uggs -- on the flick's New York City set Friday afternoon.

Cattrall's character split up with Smith Jerrod (Jason Lewis) at the end of the first movie, and moved back to New York City.

But a source told Us Weekly earlier this month Lewis will appear in the follow up (due in theaters March 2010). 

"Yes, Jason is back!" says the insider. "Smith has become a famous movie star, so we'll see how that plays out and how that affects their relationship."

What else happens to Cattrall in the movie? A casting notice also claims she'll have to cope with downsizing her spending after some of her investments get wiped out.