Though she'll soon be walking down the aisle to marry fiancé Justin Theroux, Jennifer Aniston is set to play Tim Robbins' wife in the upcoming film adaptation of "The Switch."

The Elmore Leonard novel follows a corrupt real estate developer in 1970's Detroit whose wife is kidnapped by two common criminals. The husband decides it's a good way to get rid of his wife, and refuses to pay the ransom. But his wife then teams up with the kidnappers to get all of his money.

Saying goodbye to the last day of 2012, Jennifer Aniston and Justin Theroux showed up by the pool in Cabo San Lucas, Mexico yesterday afternoon (December 31).

The “Friends” flirt and her hunky fiancé looked to be thoroughly enjoying their time together in paradise, even sharing a few kisses as they held hands and sunned themselves.

While they continue their romantic Cabo vacation, Jennifer Aniston and Justin Theroux invited a few friends along to share the fun on Saturday (December 29).

Relaxing outside in the sun, the "Friends" star and her fiancée were joined by fellow celeb couples Jimmy Kimmel, Molly McNearney, Emily Blunt, and John Krasinski.