I won't name it, but my first feature had written in the script "Ext. Wooded Area. Night" and then we wound up shooting in the Bronx. The "Wooded Area" turned into three trees on a 9 foot patch of grass.

Sorry, off topic. "Off the Beaten Path" was largely shot in the woods. In fact half the movie involves getting deep into the woods.

Severed Forest

Broken, a low-budget 2006 Brit movie I saw at this year's Fantasia festival. Apart from two-three minutes at the beginning, everything takes place in a forest.