Comparing 'Slumdog millionaire' and 'Somerstown' - To what extent could they be classed as British films?

'Slumdog millionaire'(2008) is a film directed by Danny Boyle and written by Simon Beaufoy ( The full monty). The film was widley recognised and won 8 acadmemy awards .The film was distributed by two distributors, Pathé Pictures International (Europe) and Fox Searchlight Pictures, in conjunction with Warner Bros(US/Canada). Although the film was written and directed by British people and starred a British actor (Dev Patel) it has been questioned whether the film can be classed as a British film because of what it is about and where the film is set. However 'Somerstown' (2008) is a film Directed by Shane Meadows (This is England).This film wasn't as recognised as 'Slumdog millionaire'
only winning one award at the London Critics Circle Film Awards and
didn't make as money as that film did but it was set in London and is about the social enviroment of London and stars a British actor (Thomas Turgoose) better known for his role in 'This is England', also a British film. 'Somerstown' was also entirely funded by Eurostar.
Although both films are classed as films from the UK it is easier to class one of the films 'more British' than the other. 'Somerstown' was directed by a British Director and stars a known British actor, the film is also set in London, about London so it's obvious it is a British film. However 'Slumdog millionaire' Is set in a different country and its about a different country so it's easy to say the film isnt British but it is directed by a British director and stars a British actor. So one of the films is obviously British and the other is only British behind the scenes.