Jennifer Garner reunites with her Alias co-star Bradley Cooper to moderate a Q&A following a screening of his new film Maestro

More than two decades after their breakthrough roles on ABC's hit spy drama series Alias, Jennifer Garner and Bradley Cooper reunited on Saturday.

Garner, 51, and Cooper, 48, reunited at the Academy Museum of Motion Pictures in Los Angeles for a Screen Actors Guild screening of Maestro, which Cooper stars in and directs. 

Garner served as the moderator for the Q&A session after the film with Cooper - who was recently spotted sporting new clothes from girlfriend Gigi Hadid's fashion line - and co-stars Carey Mulligan, Matt Bomer and Sarah Silverman.

Garner was wearing a black turtlenck with matching black-framed glasses as her auburn locks flowed down past her shoulders.

She accessorized with gold hoop earrings and a black Yves Saint Laurent belt cinched around her grey knee-length skirt. 

Alias stars: More than two decades after their breakthrough roles on ABC's hit spy drama series Alias, Jennifer Garner and Bradley Cooper reunited on Saturday

Alias stars: More than two decades after their breakthrough roles on ABC's hit spy drama series Alias, Jennifer Garner and Bradley Cooper reunited on Saturday

Screening: Garner, 51, and Cooper, 48, reunited at the Academy Museum of Motion Pictures in Los Angeles for a Screen Actors Guild screening of Maestro, which Cooper stars in and directs

Screening: Garner, 51, and Cooper, 48, reunited at the Academy Museum of Motion Pictures in Los Angeles for a Screen Actors Guild screening of Maestro, which Cooper stars in and directs

Jen's look: Garner was wearing a black turtlenck with matching black-framed glasses as her auburn locks flowed down past her shoulders

Jen's look: Garner was wearing a black turtlenck with matching black-framed glasses as her auburn locks flowed down past her shoulders

The actress completed her look with a pair of black pumps for the screening and Q&A session.

Cooper opted for a white t-shirt under a dark blue suede jacket, while sporting the scruffy start of a new beard.

He also donned grey pants and wore a pair of brown-framed glasses for the Q&A screening.

Cooper completed his look with a pair of rugged brown work boots, as he posed with Garner and his co-stars after the Q&A session. 

Cooper began the Q&A session by revealing that Garner was the, 'first person I ever met in L.A., nicest person, gave me cookies.'

Cooper explained in a 2009 interview with OK! that he first met her while they were shooting the Alias pilot.

'She was one of the first people I met when I stepped onto Los Angeles soil. And she was very maternal, even then,' Cooper explained. 

'She wanted to take care of me, make sure I was okay all the time. The first time I saw her, I was in the production office when we were shooting the pilot, and this girl comes in, glowing,' he added.

Bradley's look: Cooper opted for a white t-shirt under a dark blue suede jacket, while sporting the scruffy start of a new beard

Bradley's look: Cooper opted for a white t-shirt under a dark blue suede jacket, while sporting the scruffy start of a new beard

Glasses: He also donned grey pants and wore a pair of brown-framed glasses for the Q&A screening

Glasses: He also donned grey pants and wore a pair of brown-framed glasses for the Q&A screening

Co-stars: Cooper completed his look with a pair of rugged brown work boots, as he posed with Garner and his co-stars after the Q&A session

Co-stars: Cooper completed his look with a pair of rugged brown work boots, as he posed with Garner and his co-stars after the Q&A session

Recruited: Garner played Sydney Bristow, a young woman recruited out of college to be a spy for the government

Recruited: Garner played Sydney Bristow, a young woman recruited out of college to be a spy for the government

Reporter: Cooper played Will Tippin, a local news reporter and one of Sydney's best friends who ultimately becomes part of her world of espionage

Reporter: Cooper played Will Tippin, a local news reporter and one of Sydney's best friends who ultimately becomes part of her world of espionage

'She had just baked cookies, which she was offering to me, and I was like, "That is who’s playing Sydney Bristow?"' Cooper said. 

Garner played Sydney Bristow, a young woman recruited out of college to be a spy for the government.

Cooper played Will Tippin, a local news reporter and one of Sydney's best friends who ultimately becomes part of her world of espionage.

The show ran for five seasons on ABC, spanning 105 episodes, also starring Michael Vartan, Victor Garber and Merrin Dungey, created by J.J. Abrams.