Shining in the rain: Jennifer Aniston was wearing a shimmering stone-grey Valentino dress at the somewhat soggy London premiere of her new move Horrible Bosses tonightJennifer Aniston managed to brighten up a dull, grey evening on London's South Bank at the UK premiere of her new movie Horrible Bosses - despite wearing a stone coloured dress to match the leaden, rain-sodden skies.
Though muted in colour, the star still dazzled in her shimmering Valentino, accompanied with her sparkling smile and shiny white satin Tom Ford shoes.
The subtle but still glamorous frock was a sleeveless shift style embellished with sequins.
Hollywood glamour: The star looked stunning in a beautifully subtle dress with some gorgeous detailing 
Smiling through: Jennifer lit up the grey evening with her high-beam smile
The star soon got out of the chilly-for-July weather however to pose for more photos in the reception of the BFI.
Joining her were her co-star Jason Sudeikis, co-stars Jason Bateman and his wife Amanda Anka, co-star Charlie Day and wife Mary Elizabeth Ellis, as well Radio 1 presenter Edith Bowman and T4 presenter Jameela Jamil.
Hand in hand: Later on Jennifer changed into an LBD for the after party at Shoreditch House in London and left with boyfriend Justin TherouxAlso grabbing the chance to rub shoulders with Jen on the blue carpet were actress Amanda Peet, TV presenter Zara Martin, as well as Made In Chelsea stars Millie Mackintosh, Francis Boulle, Gabriella Ellis, Hugo Taylor and Frederik Ferrier.
In the movie, Jennifer takes on the role of a sex-starved dentist and earlier in the day at a photocall ahead of the premiere, opted for something a little racy in keeping with her character.
The 42-year-old actress wore a simple yet seductive black leather dress.
Top billing: Jennifer back in the warm of the BFI with her co-star Jason Sudeikis
All friends together: Jennifer's co-stars Jason Bateman (L) with his wife Amanda Anka, and Charlie Day with his wife Mary Elizabeth Ellis
Ready for her close up: The star adjusted her famous hair after getting out of the rainy blustery British weatherThe star, who is best known for playing Rachel Green in Friends, accessorised with a pair of strappy sandals and two bracelets on her left wrist.
Jennifer showed off an inking, seen on the inside of her right foot, which is a tribute to her dog Norman, who passed away in May.
Jennifer joined co-stars Jason Sudeikis, Charlie Day, Jason Bateman and Kevin Spacey who star in the comedy.
How does she do it? Miss Aniston (left) at 42 and (right) as Rachel in her Friends days during her 20s
Then again, as she posed for photographers in London yesterday, it seemed that Miss Aniston is simply enjoying a little fortysomething confidence.
‘I absolutely get more comfortable in my body and in who I am as I get older,’ she has said.
Broadcast beauties: Jameela Jamil (L) and Edith Bowman (R) had both donned their glad rags to rub shoulders with Jennifer Aniston on the blue carpet 
Ways and means: Made In Chelsea stars Milli Mackintosh, Hugo Taylor and Frederik Ferrier and friend all managed to get on the guest list for the Horrible Bosses London premiere 
No more girl next door: Jennifer Aniston attended a photocall for the London film premiere of Horrible Bosses earlier in the day dressed in a racy black leather mini- dress
Making a statement: The simple but seductive dress showed off the actress's amazing figure and her deep tan
Comic cast: Jason Sudeikis, Charlie Day, Jason Bateman, Jennifer Aniston and Kevin Spacey all took part in the photocall at the Dorchester Hotel ahead of the premiere source: dailymail