Mark Helfrich (born November 13, 1957) is an American film editor and director. He is an elected member of American Cinema Editors (ACE) and serves on the board as an associate director. Helfrich has edited over thirty films, such as Stone Cold (1991) and Showgirls (1995) with Mark Goldblatt. Helfrich is also the primary editor for director Brett Ratner's films, such as Money Talks (1997), Rush Hour (1998), The Family Man (2000), Rush Hour 2 (2001), Red Dragon (2002), and After the Sunset (2004), X-Men: The Last Stand (2006) with Mark Goldblatt and Julia Wong, Rush Hour 3 (2007) with Dean Zimmerman and Don Zimmerman, Tower Heist (2011), and Hercules (2014) with Wong. Helfrich directed Good Luck Chuck. He has also edited, with Brett Ratner's direction, a version of the Hollywood film production titled Kites: The Remix a.k.a. Kites (2010), as well as the pilot episode for Prison Break, an American-based TV drama series produced by Brett Ratner. Helfrich edited Brett Ratner's music video Beautiful Stranger featuring Madonna.
Oyuncu
| 2020 | Total Excess: How Carolco Changed Hollywood as Self |
| 2019 | Class of '79: 40 Years of Rock 'N' Roll High School |
| 2018 | They Bite!: The Making of Critters as Self |
| 2014 | Electric Boogaloo: The Wild, Untold Story of Cannon Films as Self - Editor |
Diğer Roller
| 2024 | Kod Adı: Kırmızı - Editor |
| 2024 | Harold ve Mor Tebeşir - Editor |
| 2017 | Jumanji: Vahşi Orman - Editor |
| 2016 | Nina - Editor |
| 2014 | Herkül Özgürlük Savaşçısı - Editor |
| 2013 | Ölümsüz Polisler - Editor |
| 2013 | Çatlak Film - Editor |
| 2011 | Kule Soygunu - Editor |
| 2011 | Cadılar Zamanı - Editor |
| 2010 | Tehlikeli Aşk - Editor |
| 2009 | Son Durak 4 - Second Unit Director |
| 2009 | Son Durak 4 - Thanks |
| 2008 | Zoraki Tatil - Editor |
| 2008 | Seni Seviyorum New York - Editor |
| 2007 | İyi Şanslar Chuck - Director |
| 2007 | Bitirim İkili 3 - Editor |
| 2006 | X-Men: Son Direniş - Editor |
| 2004 | Gün Batarken - Editor |
| 2003 | Tatlım - Editor |
| 2002 | Kızıl Ejder - Editor |
| 2001 | Bitirim İkili 2 - Editor |
| 2000 | Aile Babası - Editor |
| 2000 | Korkunç Bir Film - Editor |
| 1998 | Bitirim İkili - Editor |
| 1997 | Most Wanted - Editor |
| 1997 | Para Konuşur - Editor |
| 1995 | Showgirls - Editor |
| 1995 | The Avenging Angel - Editor |
| 1994 | Shake, Rattle and Rock! - Editor |
| 1994 | Runaway Daughters - Editor |
| 1994 | Motorcycle Gang - Editor |
| 1993 | Vuruş Mesafesi - Editor |
| 1993 | Midnight Kiss - Editor |
| 1993 | Kaçacak Yer Yok - Editor |
| 1991 | Son Görev - Editor |
| 1991 | Stone Cold - Editor |
| 1991 | Rich Girl - Editor |
| 1990 | Parker Kane - Editor |
| 1990 | Karanlık Melek - Editor |
| 1988 | Kızgın - Editor |
| 1987 | Av - Editor |
| 1986 | Dokuz Canlı Tehlike - Second Unit Director |
| 1985 | Rambo: İlk Kan 2 - Editor |
| 1985 | Yaşayan Ölülerin Dönüşü - Additional Editor |
| 1984 | אסקימו לימון 5: רומן זעיר - Editor |
| 1984 | אסקימו לימון 5: רומן זעיר - Music Editor |
| 1983 | Revenge of the Ninja - Editor |
| 1979 | Rock 'n' Roll High School - Assistant Editor |
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