Why Stop Now? (2012) on Netflix

Plot summary

Eli Bloom drinks too much and plays piano well enough that his teacher has lined up an audition for a place at a conservatory in Boston. His mother, Penny, a drug user who does not see her habit as a problem, has agreed to check into a twenty-eight day rehab program. In one morning Eli must leave his half sister Nicole with her hand puppet Julio at school, deliver Penny to the clinic and play his audition. The clinic refuses Penny because she has no health care, and the nurse's advice sends mother and son looking for the drugs that would let her be admitted as a chronic user. Penny's dealers, Sprinkles and Black, are the first stop.