Question: Who directed the 2006 film featuring visual effects from Giantsteps?

Context paragraphs:
GenArts, Inc.: GenArts, Inc. is a Cambridge, Massachusetts-based developer of visual effects software for the film, broadcast and advertising industries.  The majority of traditional video content such as movies, commercials, television shows, newscasts and music videos include at least some special effects created in a GenArts product.GenArts creates visual effects software and plugins that integrate visual effects such as glows, lightning, fire and fluids into post-production video editing software from companies like Apple, Adobe, Autodesk and The Foundry.

AACTA Award for Best Visual Effects or Animation: The AACTA Award for Best Visual Effects or Animation (previously Best Visual Effects) is an award presented by the Australian Academy of Cinema and Television Arts (AACTA) for achievements in visual effects in film, television, documentary and short film.  The award was first presented by the Australian Film Institute (AFI)at the Australian Film Institute Awards (known commonly as the AFI Awards) from 2006-2010, prior to the establishment of the Academy.  In 2014 the award for Best Visual Effects was renamed Best Visual Effects or Animation.  Additionally, this category is now open to any film, television or documentary production, regardless of geography, which has had 100% of its visual effects and animation made in Australia.

Carey Villegas: Carey Villegas is a visual effects artist who was nominated at the 83rd Academy Awards in the category of Best Visual Effects, for the film "Alice in Wonderland".  His nomination was shared with Sean Phillips, Ken Ralston and David Schaub.  Also for Alice in Wonderland, Carey won the 2010 Golden Satellite Award for Best Visual Effects and was nominated for the British Academy Award (BAFTA), Critics Choice Award, Saturn Award, and the Visual Effects Society Award (VES) for "Outstanding Visual Effects in a Visual Effects Driven Motion Picture".

Giantsteps: Giantsteps is a visual effects studio located in Venice Beach, California.  The company was founded in 2004 by Ryan Thompson and Michael Vaglienty, a visual effects producer and artist who began their careers working with the Brothers Strause of Hydraulx in 1996.  The company recently produced effects work on national television commercials for major advertisers including Clorox, Cadillac and Cingular Wireless; and on feature films including "" and "The Covenant".

Apocalypse, CA: Apocalypse, CA is a 2011 American comedy film.  Written and directed by Chad Peter, the film stars Nick Mathis, Erin Bodine, Anne McDaniels, Alexander Cardinale, Elizabeth Sandy, and Sarah Smick.  "Apocalypse, CA" is an indie film featuring visual effects from artists Ryan Wieber and Teague Chrystie in this feature film directorial debut by Chad Peter.

John Nelson (visual effects artist): John Nelson (born July 21, 1953 in Detroit, Michigan) is a Visual effects supervisor and a 1976 graduate of the University of Michigan.  He won the Academy Award for Best Visual Effects at the 73rd Academy Awards, for his work on the film "Gladiator".  He was also nominated for the Academy Award for Best Visual Effects for supervising the visual effects in the films "I, Robot" and "Iron Man".

Harrison Ellenshaw: Harrison Ellenshaw (born Peter Ellenshaw, July 20, 1945 in Harrisburg, Pennsylvania) is an American matte painter, following his British-born father Peter Ellenshaw.  He started his career at Walt Disney Studios.  He later joined George Lucas's effects studio Industrial Light and Magic (ILM), where he produced many of the matte visual effects backgrounds for the films "Star Wars" (1977) and "The Empire Strikes Back" (1980).  He then returned to Disney to work on the film "Dick Tracy" (1990), and eventually headed Disney Studio's effects department, Buena Vista Visual Effects (BVVE).  He was also visual effects supervisor for "Tron" (1982), where he had the distinction of being the first person to have that credit in a film.

The Covenant (film): The Covenant is a 2006 American supernatural horror thriller film written by J. S. Cardone, directed by Renny Harlin, and starring Steven Strait, Taylor Kitsch, Toby Hemingway, Chace Crawford, Sebastian Stan, Laura Ramsey, and Jessica Lucas.  The film, despite receiving very negative reviews, was a moderate box office success.

Boss Film Studios: Boss Film Studios was a prominent American visual effects company, founded by visual effects veteran Richard Edlund after his departure from Industrial Light and Magic, producing visual effects for over thirty films from 1983 to 1997.  Before that period Edlund had worked at ILM on films like "Raiders of the Lost Ark" (1981) and the original Star Wars trilogy (1977-1983).

Animal Logic: Animal Logic is an Australian animation and visual effects studio based at Fox Studios in Sydney and Warner Bros.  Studios in Los Angeles.  Established in 1991, Animal Logic has produced visual effects and animation for feature films such as "The Great Gatsby", "Walking with Dinosaurs 3D", "The Matrix", "300", the Academy Award-winning "Happy Feet", "Moulin Rouge! " and "".  Animal Logic also produced the animation on "The Lego Movie", directed by Phil Lord and Chris Miller and released in February 2014.  Animal Logic was recognised for its work as lead visual effects vendor on Baz Luhrmann’s "The Great Gatsby", when it won Outstanding Achievement in Visual Effects at the 3rd AACTA Awards ceremony.

Supporting paragraphs: Giantsteps The Covenant (film)
Answer: Renny Harlin