The neckline was as low as necklines get...and was held up with the help of two very thin criss-cross straps in the back and, presumably, a lot of boob tape.
Jamie Dornan was no doubt impressed:
But Johnson wasn't the only one to make a fashion statement that night. A nearly unrecognizable Rita Ora wore a one-strap Giambattista Valli print dress that's Barbie-worthy.
The train is wild, guys:
Christian Grey's other love interests in the film—Bella Heathcote, who plays creepy Christian ex-turned-stalker Leila and Kim Basinger, who plays Elena Lincoln (the film's Mrs. Robinson character)—also showed. Heathcote went for a gold Saint Laurent dress
And Basinger opted for a classic, form-fitting black silk one::