Baftas: What makes a film British?

The UK's answer to the Oscars take place on Sunday, as Hollywood flies into London to walk the Bafta red carpet.

The awards are seen as a celebration of cinema, with a special interest in British film.

But with Hollywood blockbusters like Gravity and Saving Mr Banks nominated for Outstanding British Film, Lizo Mzimba asks - what makes a film 'British'?