I haven't seen this movie but from a Google search it is showing at the Lighthouse Cinema which is in Smithfield Dublin 7, an area I'm familiar with myself (I lived in nearby Stoneybatter for a decade) and I know for a fact it is in close proximity to many places where booze and probably also drugs are available. Also plenty of Garda around in that area so if you are found on the streets in a drunken state with no place to stay in Dublin and no funds to pay for a taxi home you stand a high chance of being arrested.
I don't think this is a good plan FF.