Bridget Jones Mad About the Boy slyly acknowledges one supporting star's famous role in the Harry Potter franchise with a clever meta in-joke.

Now, as audiences prepare for the release of the latest Bridget Jones film, Scots actress Shirley Henderson has revealed the closeness of the characters is matched by the cast themselves.

As Bridget Jones returns for a fourth movie the one constant throughout has been her friend group Shazzer, Jude and Tom.