'Behind The Garden Gate' is a documentary film about homegrown biodiversity and the challenges that come with it.

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In the 1970s Guus Lieberwerth and friends cleared a patch

of agricultural wasteland in order to take care of rare and

endangered plants and animals.

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Now, 50 years later nature is thriving within a hidden paradise just five minutes away from a city centre, but even closer to systemic pressures and land developers.