Andy Serkis who’s new to directing was honored to be asked to be the second unit director on The Hobbit (and he does a good job as we have seen through out Peter Jacksons video blogs). Peter Jackson gave Andy Serkis filmmaking tips and acted as a mentor. contactmusic.com quoting from EMPIRE magazine:

Serkis explained: ‘‘He would watch form his set, call: ‘No, no, it’s not working. Just bail out of the shot.’ He was mentoring me. ”There were different ways we worked. We’d set up entire sequences, or he’d start a scene and I would finish  it if there wasn’t time.

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