Wrapping up this year’s Belfast Film Festival, Michele Devlin and Mark Cousins took to the podium and paid tribute, in brittle delivery, to the spirit of the festival and its organisers — generous, curious, international — and to the legacy of murdered journalist Lyra McKee, who had been involved with Doc Fest, the Festival’s documentary spin-off. Some of the best and worst of Northern Ireland running in tandem. We need some catharsis, and closing film Beats, directed by Brian Welsh and adapted by Kieran Hurley from his own play, is just the ticket, an affectionate celebration of friendship, connection and the delight of being…