If you're looking to learn about and get an understanding of practical solutions for growing healthy food and for preserving and nurturing the topsoil of our planet, you'd do well to "pass" on this movie. Spend your time on something constructive and well put together, instead.
On the other hand, you could watch this movie. You would see a few good quotations and statements of fact, However, many/most people interested in that sort of information already know much of it, without gleaning it from relatively small pieces of movies such as this one. You would see a few fragmented minutes (cameos, in effect) of some "top" eco luminaries (including Vandana Shiva) making wise though mostly generic pronouncements, The movie intersperses that into over an hour of stories about three poorly explained, inadequately thought out, and failed projects.
The people who generated the movie-trailer strung together the best visuals and the most uplifting statements and aspirations, into a sparkling trailer, which seems to promise that which is not delivered.
The editors of the film footage could have spared us yawning stretches of cutesy kiddies and of personality-build-ups of idiosyncratic leaders/inventors of the three projects. We the audience sit tolerantly through such drawn out "content", in anticipation of never-arriving, system-wide views, effective practical solutions, etc.
Unfortunately I could not say this movie is educational on the topics of growing healthy food and of soil preservation and nurture.
By the way, the background music is weak, highly depressing and maddeningly repetitive, repetitive, repetitive......
The editors did well to partially salvage the movie by interspersing limited "bright flashes" between .... well .... dross.
Review of The Need to Grow
