Reese Witherspoon poses with her grown up daughter on the red carpet

Remember when Reese Witherspoon’s daughter Ava was just a little girl? Well, those days are long gone.

Now 17, Ava is the spitting image of her mum, and created quite the stir when the duo posed together on the red carpet as mum promoted her new HBO project, Big Little Lies.

Reese told E! that people often confuse the two, and approach Ava to congratulate her on her acting.

‘People come up to her [all the time],’ said Reese. ‘She's like, “I'm not in the movie.”’

Reese says Ava currently has no plans to act in films – but with a face like that, we're not convinced we won't see her on the big screen soon.