| Title(Year of production) | In charge | Average | Number of reviews |
| THE LORD OF THE RINGS:THE FELLOWSHIP OF THE RING (2001) | Screenwriter, Producer , Assistant Director | 6.69 / 10.0 | 669 |
| THE LORD OF THE RINGS:THE TWO TOWERS (2002) | Screenwriter, Producer | 7.38 / 10.0 | 468 |
| THE LORD OF THE RINGS:THE RETURN OF THE KING (2003) | Screenwriter, Producer | 7.55 / 10.0 | 400 |
| KING KONG (2005) | Screenwriter, Producer | 6.91 / 10.0 | 236 |
| BRAINDEAD (1992) | Actress, Screenwriter, Other Crew | 7.37 / 10.0 | 109 |
| Hostel (2005) | Other Crew | 5.97 / 10.0 | 81 |
| HEAVENLY CREATURES (1994) | Screenwriter | 7.15 / 10.0 | 73 |
| THE LORD OF THE RINGS : THE FELLOWSHIP OF THE RING - SPECIAL EXTENDED EDITION - (2001) | Screenwriter, Producer , Assistant Director | 8.23 / 10.0 | 63 |
| The Lovely Bones (2009) | Screenwriter, Producer | 5.36 / 10.0 | 61 |
| THE LORD OF THE RINGS:THE RETURN OF THE KING - SPECIAL EXTENDED EDITION - (2003) | Screenwriter, Producer , Write Words, Composer | 8.55 / 10.0 | 60 |
| The Hobbit: An Unexpected Journey (2012) | Screenwriter, Producer | 6.36 / 10.0 | 58 |
| THE LORD OF THE RINGS:THE TWO TOWES - SPECIAL EXTENDED EDITION - (2002) | Screenwriter, Producer | 8.20 / 10.0 | 54 |
| The Frighteners (1996) | Screenwriter, Producer | 6.38 / 10.0 | 52 |
| The Hobbit: The Desolation of Smaug (2013) | Screenwriter, Producer | 6.25 / 10.0 | 40 |
| The Hobbit: The Battle of the Five Armies (2014) | Screenwriter, Producer | 6.80 / 10.0 | 30 |
| JUST THE FEEBLES (1989) | Screenwriter | 7.33 / 10.0 | 9 |