I have a little collection of these types of movies to watch when required:
A Woman Under The Influence (Peter Faulk 1974)
28 Days (Julia Roberts 2000)
Barfly (1987)
Clean And Sober (1988)
Days Of Wine And Roses (Jack Lemmon 1962)
Factotum (2005)
Leaving Las Vegas (1995)
My Name Is Bill W (1989)
The Lost Weekend (1945)
When A Man Loves a Woman (1994)
And as someone posted above.....Rain In My Heart which is on youube.....There is no way on earth I would drink that day if I watch that.