Ora, 24, who plays Christian Grey's sister, took to Twitter ti inform about her small role.
"@FiftyShades London premiere tomorrow! It's a blink and you'll miss it role, but I'm so happy to be part of it!." Ora posted on Twitter.
A number of Twitter users who have seen the film ahead of its Friday release have also spoken out about Ora's barely-there role.
"Rita Ora has spent the last year promoting her role in 50 SHADES OF GREY. Thrillingly, she has a literal second and a half of screen time," Kyle Buchanan tweeted.