Actresses Felicity Jones, Rosamund Pike and Emma Stone are also among the invitees
Rob Kardashian posted film still of Rosamund Pike as Amy on Instagram, captioning it 'my sister Kim'
"It's a film about a murderess, but it's very empowering," Rosamund said
Hollywood A-listers sashayed down the red carpet in their finest at the 21st annual SAG awards
The likely nominees for the Best Actress category include Rosamund Pike for Gone Girl, Julianne Moore for Still Alice and Felicity Jones for The Theory of Everything
The actress found filming the sex scenes with Neil "inappropriate"