Fresh from filming scenes for the new series in Marbella, the reality stars enjoyed date at a screening of The Intern on Sunday evening (27 September).
Bella Sorella boutique owner Lydia went for old Hollywood glam in a vintage Chanel dress and matching jacket, teamed with Christian Louboutin heels, while Arg was super dapper in his crisp suit and burgundy tie.
They were joined on the red carpet by the movie's stars, Anne Hathaway and Robert Deniro, as well as fellow guests including X Factor's Sam Callahan and former Made In Chelsea star Kimberley Garner.
At one stage, Arg turned photographer and was seen taking a few snaps of his girlfriend as she posed on the red carpet.
Lydia was in Marbella for a week filming scenes for the 16th series of The Only Way Is Essex, while Arg just jetted over for a day of filming because of work commitments back in the UK. We've been told he's working on a new documentary at the minute but details are under wraps. Exciting!
The new series of TOWIE starts Sunday, 4 October at 10pm on ITVBe.
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