They both opted to borrow looks from classic movies for Halloween this year.

And Jessica Alba and her husband Cash Warren nailed their respective costumes while attending George Clooney's Casamigos Tequila Halloween bash in Beverly Hills on Friday night.

The 34-year-old actress channelled the quirky glamour of 1997 cult classic Romy and Michele's High School Reunion while Cash, 36, went for Tom Cruise's pilot look in iconic hit Top Gun.

Jessica was dressed as Mira Sorvino's character Romy White from the hit comedy, while her model best pal Kelly Sawyer dressed up as Lisa Kudrow's Michele Weinberger.

She was sporting a metallic blue mini dress, which showed off her incredibly slim legs, with a silver trim and chest panel, which perfectly matched her shiny shoes and across body handbag.

As the group headed out on the double date, Jessica clutched both Kelly's and Cash's hand throughout the evening.

Her blonde hair looked sensational against her tanned skin, while the blue of the dress perfectly complemented her bronzed hue.

Kelly and Jessica looked fantastic together as they headed out of the party in their shimmering ensembles later in the night.