Arena, 7.00pm, RTÉ Radio 1. Film reviews tonight include This Is The End, Stories We Tell, and The East. The reviewers are Brian Lloyd and Roe McDermott. Sarah Polley, the 34-year old young Canadian film-maker is the woman responsible for the absorbing Stories We Tell

In this revealing family history, Sarah has interviewed the people who were in the best position to know, in so far as one could know, her enigmatic mother, the actress Diana Polley, who died from cancer 23 years ago. Plus she has got Diana's husband Michael to read the script he has written about this singular family with a fascinating secret at its heart.

Author Susan Stairs is in studio to talk about her debut novel The Story of Before which concerns a young girl's startling discovery after her family move to a different housing estate in Dublin. Tonight's programme also features a review of the play Guaranteed by Colin Murphy.