Alison Brie is sleekly stunning as she walks the red carpet with fiance Dave Franco at Hollywood premiere of her new movie

Newly-engaged couple Alison Brie and Dave Franco were the center of attention at the Hollywood premiere of the actress' new movie Sleeping With Other People.

The 32-year-old brunette beauty wore a stylish dress that accentuated her curves and bared some flesh with a low neck and transparent side panels in the bodice.

Her best accessory, of course, was her large diamond sparkler on her left hand ring finger as she and her actor fiance, the younger brother of James Franco, basked in the attention.

In love: Newly engaged Alison Brie and Dave Franco were the center of attention at the Hollywood premiere of Sleeping With Other People on Wednesday night

In love: Newly engaged Alison Brie and Dave Franco were the center of attention at the Hollywood premiere of Sleeping With Other People on Wednesday night

The Mad Men actress, who played Trudy Campbell on the AMC hit series, glammed up her look with some patterned stilettos and a sleek hairdo.

Franco was equally stylish in a bespoke suit and patterned shirt buttoned to the neck.

In the independent film, Brie plays a serial cheater who reconnects with her former college boyfriend played by Jason Sudeikis who's a womanizer afraid of commitment.

The pair form a platonic friendship as they support each other to change their ways and along the way develop a growing mutual attraction.

Curvaceous: The actress, 32, wore a stylish sleeveless dress that showed off some cleavage and had transparent patterned panels on the bodice

Curvaceous: The actress, 32, wore a stylish sleeveless dress that showed off some cleavage and had transparent patterned panels on the bodice

Stylish: Brie, who played Trudy Campbell in AMC's Mad Men, had her brunette locks sleekly styled

Stylish: Brie, who played Trudy Campbell in AMC's Mad Men, had her brunette locks sleekly styled

Publicity conscious: The 32-year-old has been heavily promoting the independent movie and attended a red carpet screening at the Deauville American Film Festival in France on Sunday

Publicity conscious: The 32-year-old has been heavily promoting the independent movie and attended a red carpet screening at the Deauville American Film Festival in France on Sunday

Set to wed: Franco, 30, proposed to Brie with a rose gold ring set with rose cut and pave diamonds

Set to wed: Franco, 30, proposed to Brie with a rose gold ring set with rose cut and pave diamonds

Sleeping With Other People first debuted at the Sundance Film Festival in January and ha splayed several other US film festivals since then.

On Sunday, Brie was in France for a red carpet screening of the movie at the 41st Deauville American Film Festival.

The comedy also stars Adam Brody, Adam Scott, Amanda Peet and Natasha Lyonne who joined Brie and Sudeikis at the Hollywood premiere.

Natty dresser: Jason Sudeikis stars opposite Brie in Sleeping With Other People. The actor, 39, flew in from Georgia where he's filming Mother's Day with Julia Roberts, Jennifer Aniston and Kate Hudson

Natty dresser: Jason Sudeikis stars opposite Brie in Sleeping With Other People. The actor, 39, flew in from Georgia where he's filming Mother's Day with Julia Roberts, Jennifer Aniston and Kate Hudson

Supporting cast: Amanda Peet, 43, left,wore a scoop-necked burgundy frock embellished with sequins and with an embroidered waist, while  Natasha Lyonne, right, wore a black and gold sleeveless  mini dress
Supporting cast: Amanda Peet, 43, left,wore a scoop-necked burgundy frock embellished with sequins and with an embroidered waist, while  Natasha Lyonne, right, wore a black and gold sleeveless  mini dress

Supporting cast: Amanda Peet, 43, left, wore a scoop-necked burgundy frock embellished with sequins and with an embroidered waist, while Natasha Lyonne, right, wore a black and gold sleeveless mini dress

Guest list: Masters Of Sex star Lizzy Caplan was a guest at the premiere where she was greeted by the film's writer and director Leslye Headland who wore a plunging sleeveless black dress

Guest list: Masters Of Sex star Lizzy Caplan was a guest at the premiere where she was greeted by the film's writer and director Leslye Headland who wore a plunging sleeveless black dress

Alison recently revealed that she really pushed her boundaries while filming Sleeping with Other People.

'This whole movie was really my first experience with sex scenes, probably the most uncomfortable part was the very small flesh-colored underwear that you wear while you're shooting it,' she said in an interview with New York Daily News. 

'It looks pretty tame. I’m wearing my bra and it just looks like he’s shirtless, but in reality, I’m in the tiniest, thinnest flesh-colored thong and he is in like a sock just in case we get too wide a shot.'

Statement dress: Kaplan, 33, wore an attention-grabbing full-length gown that featured stripes, patterns and a tulip motif in a variety of colors

Statement dress: Kaplan, 33, wore an attention-grabbing full-length gown that featured stripes, patterns and a tulip motif in a variety of colors

Having a hoot: Dave and Lizzie took a break from posing on the red carpet to share a joke at the event

Having a hoot: Dave and Lizzie took a break from posing on the red carpet to share a joke at the event

Dapper: Adam Brody, who found fame on the TV series The O.C., looked summer cool in a pale blue and white patterned shirt with off-white pants and brown suede shoes

Dapper: Adam Brody, who found fame on the TV series The O.C., looked summer cool in a pale blue and white patterned shirt with off-white pants and brown suede shoes

Stellar cast: Parks And Recreation star Adam Scott also appears in the independent film

Stellar cast: Parks And Recreation star Adam Scott also appears in the independent film

Off screen pals: Adam looked pleased to catch up with his co-star Amanda Savage at the bash

Off screen pals: Adam looked pleased to catch up with his co-star Amanda Savage at the bash

Supporting independent film: Actress and writer Jess Weixler, left, and producer and director Katie Aselton were among those who came out to show their support for Sleeping With Other People
Supporting independent film: Actress and writer Jess Weixler, left, and producer and director Katie Aselton were among those who came out to show their support for Sleeping With Other People

Supporting independent film: Actress and writer Jess Weixler, left, and producer and director Katie Aselton were among those who came out to show their support for Sleeping With Other People

Funny guy: Actor and comedian Jason Mantzoukas, who also makes an appearance in the movie, wore a blue suit with white shirt and multi-colored tie and brown brogues

Funny guy: Actor and comedian Jason Mantzoukas, who also makes an appearance in the movie, wore a blue suit with white shirt and multi-colored tie and brown brogues

Leading man: Sudeikis also posed for photos with the director Leslye Headland

Leading man: Sudeikis also posed for photos with the director Leslye Headland

 

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