The Lawnmower Man (1992)

Rare is the homeowner who has not wished his gardener could exercise a few more brain cells. The common laborer in charge of maintaining a research scientist’s grounds in The Lawnmower Man (1992) is subjected to a series of experiments and chemical enhancements that increases his mental capacity by several hundreds of thousands of cells with each treatment. When the process is complete, The Lawnmower Man is finally able to distinguish between a weed that needs to be pulled and a bulb that needs to be nurtured. The problem is that his supercharged brain has its own ideas about which path to take for optimum career advancement.