Question: Liberation is a 2009 docudrama that features footage from events involving the overthrow of what dynasty?

Context paragraphs:
Ming official headwear: The headwear of a Han Chinese official during Ming dynasty China consisted of a black hat with two wing-like flaps of thin, oval shaped boards on each side called the "wushamao" (烏紗帽 ，formally known as "futou" 襆頭 ).  According to the Da Ming Hui Dian (大明會典 ), ordinary citizens are not allowed to wear this headdress unless attending wedding ceremonies or events involving any noble families/officials.

To Whom It May Concern: Ka Shen's Journey: To Whom It May Concern: Ka Shen's Journey () is a 2009 docudrama about actress Nancy Kwan.  Directed and written by former Warner Bros. executive Brian Jamieson, the film depicts Kwan's meteoric rise to fame when she was selected to star in the 1960 film "The World of Suzie Wong" and the 1961 film "Flower Drum Song".  In an era when White people played the Asian roles in Hollywood, Kwan's achievement was groundbreaking.  The film portrays Kwan's being cast for inconspicuous roles after her early success.

Liberation (film): Liberation is a 2009 docudrama about the Shah of Iran.  Centered on his exile in Cuernavaca, Mexico, the film features actual archival footage from the Iranian Revolution of 1979 as well the Shah's interview with David Frost.

Iranian Revolution: The Iranian Revolution (Persian: انقلاب ایران‎ , "Enqelāb-e Iran " ‎ ; also known as the Islamic Revolution or the 1979 Revolution;) refers to events involving the overthrow of the Pahlavi dynasty under Mohammad Reza Shah Pahlavi, who was supported by the United States, and eventual replacement of 2500 years of Iranian monarchy with an Islamic Republic regime under the Grand Ayatollah Ruhollah Khomeini, the leader of the revolution, supported by various leftist and Islamist organizations and student movements.

Iran and the West: Iran and the West is the name of a three-part British documentary series shown in February 2009 on BBC Two to mark the 30th anniversary of the Iranian Revolution.  The first episode was shown at 9:00pm on Saturday 7 February with parts two and three shown on consecutive Saturdays.  The documentary looks at the relationship between Iran and the countries of the west and features interviews with politicians who have played significant roles in events involving Iran, Europe and the United States since 1979.

Most Daring: Most Daring is an American reality television show produced by Nash Entertainment and truTV Original Productions.  Initially showing only rescue footage, it later became a companion to the show "Most Shocking" and like its sister show, it features footage of police chases, daring rescues, auto accidents and other crazy and outrageous content which sometimes could be scary for some viewers.  It bills itself as "The Footage too shocking for "Most Shocking".

Story of Sinuhe: The Story of Sinuhe is considered one of the finest works of Ancient Egyptian literature.  It is a narrative set in the aftermath of the death of Pharaoh Amenemhat I, founder of the 12th dynasty of Egypt, in the early 20th century BC.  It is likely that it was composed only shortly after this date, albeit the earliest extant manuscript is from the reign of Amenemhat III, c. 1800 BC.  There is an ongoing debate among Egyptologists as to whether or not the tale is based on actual events involving an individual named Sinuhe, with the consensus being that it is most likely a work of fiction.  Due to the universal nature of the themes explored in "Sinuhe", including divine providence and mercy, its anonymous author has been described as the "Egyptian Shakespeare" whose ideas have parallels in biblical texts.  "Sinuhe" is considered to be a work written in verse and it may also have been performed.  The great popularity of the work is witnessed by the numerous surviving fragments.

Hurricane! (Nova): Hurricane!  (episode: 1616 (308)) is a "Nova" episode that aired on November 7, 1989 on PBS.  The episode describes the fury of a hurricane and the history of hurricane forecasting.  The episode features footage of Hurricane Camille of 1969 and Hurricane Gilbert of 1988 and behind the scenes footage at the National Hurricane Center as forecasters tracked Hurricane Gilbert from its formation to its landfall in northern Mexico.  Meteorologists, Hugh Willoughby, Bob Sheets (then director of the National Hurricane Center) and Jeff Masters were shown in the episode.  The episode was released on VHS home video under the same episode title and distributed by WGBH Boston video.  In 2004, the "Nova" episode was released on DVD and featured a different cover picture and title style.  In 1997, UAV Corp. also distributed the "Nova" episode under the title Deadly Hurricanes which contains additional footage of Hurricane Andrew and Hurricane Iniki of 1992.  The UAV version of the episode has since been discontinued.

Comcast SportsNet Northwest: Comcast SportsNet Northwest (sometimes abbreviated as CSN Northwest) is an American regional sports network that is owned by the NBC Sports Group unit of NBCUniversal, and operates as an affiliate of Comcast SportsNet.  The network broadcasts regional coverage of professional sports events throughout the Pacific Northwest, focusing primarily on the NBA's Portland Trail Blazers and college sports events involving the Oregon Ducks; the network also covers other sports events involving teams within the northwestern United States, including those featuring college and high school teams.

When Boris Met Dave: When Boris Met Dave is a 2009 docudrama which investigates the shared past of David Cameron and Boris Johnson who, at the time of broadcast, were two of Britain's most influential Conservative Party politicians – Cameron as Conservative leader and Johnson as Mayor of London.  The film features interviews with people who knew Cameron and Johnson both at Eton College and Oxford where they were both members of the Bullingdon Club.  The programme also looks at Johnson's campaign to become president of the Oxford Union and dramatises some of the other key events of their student days.  The film was first broadcast on More4 on 7 October 2009 and was later repeated on Channel 4.

Supporting paragraphs: Liberation (film) Iranian Revolution
Answer: Pahlavi