Rise of the Planet of the Apes
Will Rodman (James Franco), a scientist at biotechnology company Gen-Sys, is testing viral-based drug ALZ-112 on chimpanzees to find a cure for brain ailments such as Alzheimer's disease. The drug is given to a chimpanzee, Bright Eyes, greatly increasing her intelligence, but she is forced from her cage, goes on a rampage, and is killed. Will's boss Steven Jacobs (David Oyelowo) terminates the project and orders chimp handler Robert Franklin (Tyler Labine) to euthanize the chimps. After doing as ordered, Franklin discovers that Bright Eyes had recently given birth and convinces Will to save the baby chimp's life by taking him home temporarily. Will's father Charles (John Lithgow), who is suffering from Alzheimer's disease, names the chimp "Caesar". Will learns that Caesar (Andy Serkis) has inherited his mother's high intelligence (the 112 virus passing to him in utero) and decides to raise him, working from home and observing his behavior in hopes that he can get the project restarted. Three years later, Will introduces Caesar to the redwood forest at Muir Woods National Monument. Meanwhile, with Charles' condition rapidly deteriorating, Will treats him with ALZ-112 and he is restored to better-than-original cognitive ability.
An interesting aside, the film makers made Caesar look 'more human' by giving him eyes with whites, whereas normal apes have dark eyes.
If you're quiet you may see deer in this wooded area. You're looking for a themed container attached to the tree, easily accessible when at the correct height. It's not visible from the ground (although it might be if moved a little) but isn't hidden in any way.
This cache is placed up in a tree and will require climbing kit to reach it. Neither myself nor Groundspeak accept any liability, you look for this cache because you want to. Enjoy 
Please don't post spoiler images of the cache for others, so they enjoy it when they find it - cheers!