07/01/2011 09:29 am ET | Updated Aug 31, 2011

Jennifer Aniston: Justin Theroux Left In Car As Stars Hit 'Horrible Bosses' Premiere (PHOTOS)

She plays a sexual harassing dentist in the film, but Jennifer Aniston went solo at the premiere of her new R-rated ensemble comedy, "Horrible Bosses." At least on the red carpet, anyway.

As it turns out, Aniston's new boyfriend, Justin Theroux, was in the car as she and her cast mates, including Jason Bateman, Charlie Day, Jason Sudeikis and Jamie Foxx, debuted the film, which features those first three men -- with the help of the last -- conspiring to kill their, well, horrible bosses. Aniston -- as Day's boss -- accounts for one of the targets, while Colin Farrell and Kevin Spacey are the other two endangered employers.

It's a new type of role for Aniston; as the "enemy" of the film, she gets to play up her sex appeal and aggression, which has already led to some very, very buzzed about trailers.


Jennifer Aniston, Jason Sudeikis, Charlie Day, Jason Bateman, Jamie Foxx At 'Horrible Bosses' Premiere (PHOTOS)