The brunette - who was without her beau Spencer Matthews - made quite an entrance as she arrived at the Odeon in London's Leicester Square.
Wearing a black lace halterneck maxi dress from TOWIE star Jessica Wright's Lipstick Boutique collection (Alexia Black, £75), Lucy looked elegant as she posed for photographers.
Socialtie Lucy, who has been revealed as the new face of Gorgeous Couture, channeled Angelina Jolie's infamous Oscars red carpet pose, by showing off her long and toned legs through the knee-high split.
Sporting straight glossy locks, Lucy accessorised with patent plum heels, matching lipstick and pearl drop earrings, and kept her make-up to a minimum, pulling off an effortless red carpet style.
In the last episode (10 June) of the E4 reality show, viewers saw Spencer declare his true feelings for Lucy after admitting that he was "falling in love with her." The pair then decided to give their relationship a go but close friends Binky Felstead and Jamie Laing were unconvinced that Spencer would put an end to his manipulative ways.
There's only one more episode to see how it all pans out though, as series five of MIC is coming to an end next week! It's set to be another explosive finale, but this time it seems that Andy Johnson and Louise Thompson's relationship is put to the test.
Watch the trailer below: