British stars you won't believe are related - Take a look at the relationships between these celebrities. Some of them might surprise you!

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Justin and Louis Theroux - The Hollywood A-lister and everyone's favourite documentary maker are cousins.

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Ewan McGregor and Denis Lawson - Did you know that these two actors are uncle and nephew? Lawson played Wedge Antilles in the original 'Star Wars' trilogy and McGregor later played Obi-Wan Kenobi in the reboots.

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Daisy Lowe and Gavin Rossdale - The Bush frontman is the model's father. She only found out at the age of 14.

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Gary Oldman and Laila Morse - Academy Award-winning actor Gary Oldman is the little brother of 'EastEnders' star Laila Morse.

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Phil and Lily Collins - The Genesis drummer is father to Hollywood rising talent Lily Collins.

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Charlie and Oona Chaplin - Oona is an actress who has appeared in 'Game of Thrones' and other productions. She is the granddaughter of the star of silent film and also the great-granddaughter of American playwright Eugene O'Neill.

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Kate Middleton and Dakota Fanning - The Daily Mail reports that the royal and the Hollywood actress are distant cousins.

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Cath Kidston and Kirstie Allsopp - Kidston is known for her chintzy fabric and accessories and Allsopp is a TV personality and real estate expert. The two are cousins.

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Maggie Smith and Toby Stephens - 'Die Another Day' actor Toby Stephens is the son of Dame Maggie Smith and Sir Robert Stephens, both legendary actors in their own right.

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Maggie Smith and Chris Larkin - Smith is also the mother of actor Chris Larkin, seen here with his brother and mum as a child.

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Benedict Cumberbatch and Alan Turing - Cumberbatch played Turing in 'The Imitation Game' but it turns out the two are actually distantly related by sharing the first Earl of Somerset as a common ancestor.

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Mark Ronson and Malcolm Rifkind - Mark Ronson is a respected music producer who is related to former Conservative MP Malcolm Rifkind through his mother.

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Samantha and Charlotte Ronson - Mark Ronson's sisters are well-known in their own right. Samantha is a DJ who dated Lindsay Lohan and her twin, Charlotte, is a fashion designer.

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Matty Healy and Denise Welch - The musician from The 1975 is the son of 'Loose Women' presenter Denise Welch and 'Auf Wiedersehen, Pet' actor Timothy Healy.

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Zoe and Johnny Ball - Johnny Ball was a fixture on children's TV in the 1970s and '80s. His daughter is a BBC Radio 2 DJ and presents 'Strictly Come Dancing: It Takes Two'.

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Janet Ellis and Sophie Ellis-Bextor - The former 'Blue Peter' presenter is the mother of the musician.

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Lily and Alfie Allen - The singer and the 'Game of Thrones' actor are siblings.

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Keith Allen - And they're the children of comedian and actor Keith Allen.

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John Peel and Tom Ravenscroft - BBC 6 Music presenter Tom Ravenscroft is the son of the legendary DJ John Peel.

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Birdy and Dirk Bogarde - Birdy was nominated for a Best British Female Solo Artist award at the Brits in 2014. Her grandfather was matinee idol actor Dirk Bogarde.

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Jamie Redknapp and Frank Lampard - The two professional footballers are reportedly cousins!

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Jamie and Andy Murray - The two professional tennis players are brothers and the sons of respected coach Judy Murray. Judy herself appeared on 'Strictly Come Dancing'.

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Sophie and Emma Thompson - Sophie has a longstanding role in 'Coronation Street' and her sister needs no introduction.

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Emilia and Laurence Fox - Emilia Fox is the cousin of 'Inspector Lewis' actor Laurence.

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Freddie Fox - Their cousin Freddie is also a well-known theatre actor and you may remember him from 'Pride'

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Max and Jeremy Irons - Model and actor Max inherited his abilities from his father.

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Vanessa Redgrave and Joely Richardson - Joely Richardson is related to half of Hollywood! She is the daughter of director Tony Richardson and Vanessa Redgrave, granddaughter of Sir Michael Redgrave, and sister of Natasha Richardson.

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Beverley and Rebecca Callard - 'Coronation Street' barmaid Beverley Callard is the mother of 'Fearless' actress Rebecca.

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