Another day, another romcom for Jennifer Aniston as she begins filming with Adam Sandler

Her heavily promoted film the Bounty Hunter disappointed at the U.S. box office over the weekend after being branded 'brainless' by critics.

But Jennifer Aniston had little time to dwell on the underwhelming audience turn out - it came in third behind Alice In Wonderland and Diary of a Wimpy Kid - as she began work on yet another romcom.

The former Friends actress didn't skip a beat after signing up for back to back projects and was spotted filming with comedian Adam Sandler and Sports Illustrated model Brooklyn Decker in Los Angeles.

Romcoms a-go-go: Jennifer Aniston began filming Just Go With It alongside Adam Sandler and Brooklyn Decker just days after wrapping promotional duties for the Bounty Hunter

The trio shot scenes for Just Go For It outside the L'Hermitage hotel in Beverly Hills, with Jennifer, 41, looking a picture of elegance in a fitted cream dress, beige belt and matching strappy heels.

More...

• Jennifer Aniston dazzles at premiere in a gorgeous Grecian dress (but that 'showmance' routine is getting tired...)
• The Bounty Hunter: Hot couple? Even Ant and Dec have more sexual chemistry
• Heidi Montag displays her full range of talent in first film role... but what will co-stars Aniston and Kidman think?

Originally titled Pretend Wife, Just Go for It follows a plastic surgeon (Sandler) who convinces a single mother (Aniston) to pretend to be his soon-to-be-divorced wife so that he doesn't lose the woman he loves.

Decker, 22, who is married to tennis star Andy Roddick, will star as Sandler's love interest.

Having a laugh: The trio shot scenes outside the L'Hermitage hotel in Beverly Hills

Nicole Kidman has also signed on for the film, although her exact role is being kept under wraps.

Pneumatic reality star Heidi Montag has also been given a cameo part, which came as something of a surprise to Aniston.

When asked about the addition of Montag by Access Hollywood, Aniston replied diplomatically: 'I just heard that.... that's interesting and fun.'

Confused Jen? So are we: In the film, Sandler plays a plastic surgeon who convinces single mother Aniston to pretend to be his soon-to-be-divorced wife

She added that Montag is 'perfect' for the role, but declined to give any details about what she will be doing.

It is rumoured that Montag, who recently underwent 10 cosmetic surgery procedures, will play one of Sandler's patients.

Just Go With It is expected to be released in February 2011.

White hot: The 41-year-old showed off her incredible figure in a stylish fitted dress