The Rim Fire has threatened two groves of giant sequoias that are unique in the region, prompting park employees to clear brush and set sprinklers around the huge trees.
While sequoias have a chemical in their bark to help them resist fire, they can be damaged when flames move through slowly.
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The BFI made the move in the wake of the sexual harassment allegations made against him by a large number of women in the film industry.
A mild day for most with plenty of misty low cloud.
Hollywood star Channing Tatum broke the news in a lengthy Facebook post as he paid tribute to Harvey Weinstein's accusers.