I enjoyed this movie, greatly!
The message I got is that the policy of mandatory minimums (ironically, intended to address/correct for another imperfection in the justice system) are not as great an idea as expected. It can ensnare people (young adults) into a system that they should never be put into, once you take the element of human common sense out of the process. In the movie it is suggested that because of the dynamics of mandatory minimums and the under table activity of "assisting" law enforcement to circumvent the consequences of mandatory minimums, the legal system pits ordinary citizens, their families, and associates to those families as "mules" to further agendas in just as sinister a manner as cartels and drug lords use individuals as mules. That is a particularly poignant message, asking what is the real goal of the war on drugs?...to protect America or to use its citizens as fodder to take down kingpins and drug lords as opportunities present?
The special features content also brings up a good point that no longer are we "battling" cartels in some other country. They are operating with great freedom right inside the USA at this point. Hence, there is no "war on drugs" so much as a lost war on drugs. The wake up call is that this phenomenon is coming to affect ordinary people in ordinary neighborhoods in ways they could not possibly imagine.
I need your sweet love, Rosetta Stone girl!