Question: Peter Riegert is best known for his role as newspaper editor Delbert McGinty in a family comedy-drama film loosely based on a memoir by who?

Context paragraphs:
American Pastoral (film): American Pastoral is a 2016 American crime-drama film directed by Ewan McGregor and written by John Romano, based on the 1997 novel of the same name by Philip Roth.  The film stars McGregor, Jennifer Connelly, Dakota Fanning, Peter Riegert, Rupert Evans, Uzo Aduba, Molly Parker and David Strathairn.  Principal photography began on September 21, 2015, in Pittsburgh.

Americathon: Americathon (also known as Americathon 1998) is a 1979 American comedy film starring John Ritter, Fred Willard, Peter Riegert, Harvey Korman, and Nancy Morgan, with narration by George Carlin, based on a play by Firesign Theatre alumni Phil Proctor and Peter Bergman.  The film also includes appearances by Jay Leno, Meat Loaf, Tommy Lasorda, and Chief Dan George, with a musical performance by Elvis Costello.

Utz (film): Utz is a 1992 dramatic film directed by George Sluizer, produced by John Goldschmidt and starring Brenda Fricker, Peter Riegert and Armin Mueller-Stahl.  Mueller-Stahl won the Silver Bear for Best Actor at the 42nd Berlin International Film Festival.

Local Hero: Local Hero is a 1983 British comedy-drama film written and directed by Bill Forsyth and starring Peter Riegert, Denis Lawson, Fulton Mackay, and Burt Lancaster.  Produced by David Puttnam, the film is about an American oil company representative who is sent to the fictional village of Ferness on the west coast of Scotland to purchase the town and surrounding property for his company.  For his work on the film, Forsyth won the 1984 BAFTA Award for Best Direction.

William Rule (American editor): William Rule (May 10, 1839 – July 26, 1928) was an American newspaper editor and politician, best known as the founder of the "Knoxville Journal", which was published in Knoxville, Tennessee, from 1870 until 1991.  A protégé of vitriolic newspaper editor William G. "Parson" Brownlow, Rule established the "Journal" (initially called the "Chronicle") as a successor to Brownlow's "Knoxville Whig".  Rule twice served as mayor of Knoxville (in 1873 and 1898), and published the city's first comprehensive history, "Standard History of Knoxville", in 1900.

We Bought a Zoo: We Bought a Zoo is a 2011 American family comedy-drama film loosely based on the 2008 memoir of the same name by Benjamin Mee.  It was written and directed by Cameron Crowe and stars Matt Damon as widowed father Benjamin Mee, who purchases a dilapidated zoo with his family and takes on the challenge of preparing the zoo for its reopening to the public.  The film also stars Scarlett Johansson, Maggie Elizabeth Jones, Thomas Haden Church, Patrick Fugit, Elle Fanning, Colin Ford, and John Michael Higgins.  The film was released in the United States on December 23, 2011 by 20th Century Fox.  The film earned $120.1 million on a $50 million budget.  "We Bought a Zoo" was released on DVD and Blu-ray on April 3, 2012 by 20th Century Fox Home Entertainment.  Dartmoor Zoological Park (originally Dartmoor Wildlife Park), on which the film is based, is a 33-acre zoological garden located near the village of Sparkwell, Devon, England.

The Mask (film): The Mask is a 1994 American superhero fantasy comedy film directed by Charles Russell, produced by Bob Engelman, and written by Mike Werb, based on the comic series of the same name distributed by Dark Horse Comics.  The film stars Jim Carrey, Peter Greene, Amy Yasbeck, Peter Riegert, Richard Jeni, Ben Stein, Joely Fisher, and Cameron Diaz in her film debut.  It revolves around an unlucky bank clerk finding a mask that grants the wearer cartoon-like superpowers.

Peter Riegert: Peter Riegert (born April 11, 1947) is an American actor, screenwriter and film director, best known for his roles as Donald "Boon" Schoenstein in "Animal House" (1978), "Mac" MacIntyre in "Local Hero" (1983), fast-talking gangster Aldo in "Oscar" (1991), tough, no-nonsense Lt. Kellaway in "The Mask" (1994), newspaper editor Delbert McGinty in "We Bought a Zoo" (2011) and glove manufacturer Lou Levov in "American Pastoral" (2016).  He directed the short film "By Courier" (2000) and, along with producer Ericka Frederick, was nominated for the Academy Award for Best Live Action Short Film.

A Shock to the System (1990 film): A Shock to the System is a 1990 American dark comedy crime thriller film directed by Jan Egleson and starring Michael Caine, Swoosie Kurtz, Elizabeth McGovern, and Peter Riegert.  It is based on the 1984 novel "A Shock to the System" by British author Simon Brett.

Crossing Delancey: Crossing Delancey is a 1988 American romantic comedy film starring Amy Irving and Peter Riegert.  It is directed by Joan Micklin Silver and was based on a play by Susan Sandler, who also wrote the screenplay.  Amy Irving was nominated for a Golden Globe for the movie, for Best Performance by an Actress in a Motion Picture - Comedy/Musical.

Supporting paragraphs: Peter Riegert We Bought a Zoo
Answer: Benjamin Mee