The actress, who plays Lady Edith Crawley in Downton Abbey, joined her fellow cast members as they attended a photocall in Los Angeles last night (6 August).
Laura looked strikingly different to her character as she flashed her pins in the shift dress, which featured a quirky pleated piano design around the hemline.
She played it safe by keeping her whole outfit monochrome, opting for patent ankle cuff sandals and black nail varnish to match.
And while we're all over Laura's silver smoky eye, we would have loved a bright pop of fuchsia lippy.
Maybe next time!
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