Nina dobrev looks like catherine zeta-jones

Ever seen a movie where two actors are cast as siblings despite looking nothing alike? It's annoying, we know. It's even more annoying knowing that Nina Dobrev and Victoria Justice (who could play eerily similar-looking sisters) exist.

Because while it's long been said that there are up to seven people walking the planet that look just like you (a very freaky rumour), in some celebrity's cases, their doubles have also made it to Hollywood.

So in honour of National Lookalike Day (yes, it's a thing), here are the celeb doppelgängers that'll have you doing a second take...