Louis Theroux's new documentary 'Drinking To Oblivion' aired in late April and left a huge impact on its millions of viewers – with one man's story, 32-year-old Joe Walker, particularly sticking out.

Fast forward a little while from the time of recording the documentary and Louis has caught up with Joe, who now lives in Brighton and has been sober for eight months. Joe, seen in the documentary, was a recovering alcoholic who along with the rest of the subjects Louis speaks to was suffering from relapses in his desperate plight to quit his drinking addiction.

Louis congratulated Joe on being eight months sober on Twitter.

The documentary finishes after an hour with some of the subjects, including Joe, managing to face up to their addictions and make significant steps in stopping drinking altogether.