Question: Which film - Feiyu Show or Anvil! The Story of Anvil - is a film about a Canadian heavy metal band that was directed by Sacha Gervasi?

Context paragraphs:
Feiyu Show: Feiyu Show () is a 2014 Chinese documentary film directed by Sun Hong.  It was released in China on October 23, 2014.

This Is Thirteen: This Is Thirteen is the thirteenth studio album by Canadian heavy metal band Anvil.  The original release of "This Is Thirteen" has 13 tracks to coincide with the album title.  Some tracks are included in the movie "Anvil!  The Story of Anvil", which devotes some time to the recording of the album, specifically the song "Game Over".  In addition, "Burning Bridges" is heard in "Final Destination 4", but is not on the soundtrack to that film.  This Is Thirteen sold over 1,400 copies in its first week of release in the U.S. and by 2009 it had sold over 7,300 copies in the U.S.

Anthology (Anvil album): Anthology of Anvil is a compilation album by Canadian heavy metal band Anvil.

November Criminals (film): November Criminals is an upcoming American crime drama film directed by Sacha Gervasi and written by Gervasi and Steven Knight, based on Sam Munson's 2010 novel "The November Criminals".  The film stars Ansel Elgort, Chloë Grace Moretz, Catherine Keener and David Strathairn.

Hope in Hell: Hope in Hell is the fifteenth studio album by Canadian heavy metal band Anvil.  It was released on May 24, 2013 in Germany, May 27 in the rest of Europe and May 28 in North America.  The album was produced by Bob Marlette, who, according to Steve "Lips" Kudlow, contributed a lot to songwriting and arrangements with his skills.  The whole album was written by Lips and Robb Reiner alone.  In some songs Lips was inspired by his love of "heavy rock 'n' roll", which made him feel he "found his way home" to the time when they did their first record, "Hard 'n' Heavy".  It is the only Anvil album to feature bassist Sal Italiano.

Backwaxed: Backwaxed is a compilation album by the Canadian heavy metal band Anvil.  It is a compilation which features on side one music recorded during the sessions for previous albums and unreleased and on side two five previously released tracks.  To date, it is Anvil's only album with a main title not consisting of three words.

Anvil (band): Anvil are a Canadian heavy metal band from Toronto, Ontario, formed in 1978.  The band consists of Steve "Lips" Kudlow (vocals, guitar), Robb Reiner (drums) and Chris Robertson (bass).  To date, the band has released sixteen studio albums, and has been cited as having influenced many notable heavy metal groups, including Megadeth, Slayer, Anthrax and Metallica.

Anvil Is Anvil: Anvil Is Anvil is the sixteenth studio album by Canadian heavy metal band Anvil.  The album was produced by Martin Pfeiffer and was released on February 26, 2016.  It is the first Anvil album to feature bassist Chris Robertson.

Juggernaut of Justice: Juggernaut of Justice is the fourteenth studio album by Canadian heavy metal band Anvil.  The album was recorded at Dave Grohl's Studio 606 in Northridge, California and produced by Bob Marlette.  It was released on May 10, 2011.  Juggernaut of Justice sold over 1,600 copies in its first week of release in the U.S.  It is the final Anvil album to feature bassist Glenn Five.

Anvil! The Story of Anvil: Anvil!  The Story of Anvil is a 2008 rockumentary film about the Canadian heavy metal band Anvil.  The film is directed by screenwriter Sacha Gervasi, in his directorial debut, and features interviews with other musicians who have been influenced by the band, including Slash, Tom Araya, Lemmy, Scott Ian, and Lars Ulrich.

Supporting paragraphs: Feiyu Show Anvil! The Story of Anvil
Answer: Anvil! The Story of Anvil