'Hannah and Hanna'Written by John Retallack and Directed by Elise Davison.It is 1999.Hannah is sixteen. She loves karaoke and her bloke Bullfrog;she hates her home town of Margate and the Kosovan asylum-seekers who have come to live there.Hanna is also sixteen. She loves karaoke, loves Margate - and is one of the asylum-seekers.Slowly and unexpectedly, the two become friends, Hannah being forced…