Acapulco Gold (1973) Not to be confused with the 1978 movie of the same name and similar subject matter.

This movie is about growing (or simply locating existing crops in farmer's fields etc) and smuggling weed.

If you are into smoking weed this glimpse into how things used to be done is fascinating. But be warned of bizarre rambling interviews and seemingly pointless shots to indicate travel. (ex. shot 1 truck starts moving, 2 truck moving from different angle, 3 truck farther down the road, 4 farther, 5 farther then a bunch of different shots of it arriving at it's destination. Just the departure and arrival shots would have been plenty).

It's interesting for being a drug movie that deals more with the production/distribution then laughing along with some stoner doofuses.