Question: Which documentary, The Tillman Story or Hearts and Minds, was chosen as Academy Award for Best Documentary Feature at the 47th Academy Awards presented in 1975?

Context paragraphs:
List of Best Supporting Actor winners by age: This is a list of winners of the Academy Award of Merit for Performance by an Actor in a Supporting Role, presented annually by the Academy of Motion Picture Arts and Sciences (AMPAS) to an actor who has delivered an outstanding performance while working within the film industry.  More popularly known as the Academy Award (or the Oscar) for Best Supporting Actor, this award was initially presented at the 9th Academy Awards ceremony for 1936 and was most recently presented at the 88th Academy Awards ceremony for 2015.  Throughout the past 80 years, accounting for ties and repeat winners, AMPAS has presented a total of 81 Best Supporting Actor awards to 73 different actors.  This list is current as of the 89th Academy Awards ceremony held on February 26, 2017.

List of Academy Award Best Actor winners by age: This is a list of winners of the Academy Award for Performance by an Actor in a Leading Role, presented annually by the Academy of Motion Picture Arts and Sciences (AMPAS) to an actor who has delivered an outstanding performance while working within the film industry.  More popularly known as the Academy Award (or the Oscar) for Best Actor, this award was initially presented at the 1st Academy Awards ceremony for 1927–1928 and was most recently presented at the 88th Academy Awards ceremony for 2015.  Throughout the past 88 years, accounting for ties and repeat winners, AMPAS has presented a total of 90 Best Actor awards to 79 actors.  This list is current as of the 89th Academy Awards ceremony held on February 26, 2017.

Hearts and Minds (film): Hearts and Minds is a 1974 American documentary film about the Vietnam War directed by Peter Davis.  The film's title is based on a quote from President Lyndon B. Johnson: "the ultimate victory will depend on the hearts and minds of the people who actually live out there".  The movie was chosen as Academy Award for Best Documentary Feature at the 47th Academy Awards presented in 1975.

The Tillman Story: The Tillman Story is a 2010 American documentary film directed by Amir Bar-Lev.  The film is about the death of football player turned U.S. Army Ranger, Pat Tillman, in the war in Afghanistan, the coverup of the true circumstances of his death, and his family's struggle to unearth the truth.  It was nominated for the Grand Jury Prize at the 2010 Sundance Film Festival.  It was named 2010 Best Documentary by the San Francisco Film Critics Circle, the St. Louis Gateway Film Critics Association, and the Florida Film Critics Circle.  The film is narrated by Josh Brolin.

AACTA Award for Best Documentary Under One Hour: The AACTA Award for Best Documentary Under One Hour, is a non-feature film award presented by the Australian Academy of Cinema and Television Arts (AACTA) to the producer of an Australian documentary that is "a self-contained non-fiction film or Television Program equal to or less than 60 minutes in duration that is a creative treatment of actuality other than a news, current affairs, sports coverage, magazine, infotainment or light entertainment program."  Prior to the establishment of the Academy in 2011, the award was presented by the Australian Film Institute (AFI) at the annual Australian Film Institute Awards (more commonly known as the AFI Awards) from 2009–2010.  A single award for Best Documentary was handed out from 1958–2008, before it was split into three categories: Best Feature Length Documentary, Best Documentary Under One Hour and Best Documentary Series.  The award is presented at the AACTA Awards Luncheon, a black tie event which celebrates achievements in film production, television, documentaries and short films.

Dee Hibbert-Jones: Dee Hibbert-Jones is a film director, producer and animator.  She is best known for co-producing and co-directing the short-documentary "Last Day of Freedom" (32 mins) for which she received an Academy Award for Best Documentary (Short Subject) nomination at the 88th Academy Awards, with Nomi Talisman, an Emmy Award ( Northern CA) and the IDA Best Short Documentary Award.  Hibbert-Jones is an Associate Professor of Art and Digital Art New Media at the University of California, Santa Cruz, where she is founder and Co-Director of SPARC at UCSC a Social Practice Arts Research Center.  Hibbert-Jones and Talisman were awarded a Guggenheim Fellowship They won an Emmy Award for Last Day of Freedom, at the 45th Annual Northern California Emmy® Awards (News and Program Speciality - Documentary Topical), the Filmmaker Award from the Center for Documentary Studies at Duke, and a Gideon Award for support to Indigent Communities.  Currently they are nominated for the 2016 Congressional Black Caucus Veterans Braintrust Award.  Among Dee Hibbert-Jones' festival awards are: Best Short Full Frame Documentary Film Festival, Best Short Documentary Hamptons International Film Festival, Golden Strands Award, Outstanding Documentary Short, Tall Grass KS, Best Experimental Short, Atlanta Docufest, Impact Award (In) Justice for All, and the 2015 Platinum Award Winner Spotlight Documentary Series.  Hibbert-Jones is a MacDowell Colony Fellow, a Yerba Buena Center for the Arts Fellow and Headlands Center For the Arts Alumni.  She holds an MFA from Mills College Oakland, MA York University, PGCE from Durham University and a BA from London University.  Born in the UK she lives in San Francisco CA.

List of Best Supporting Actress winners by age: This is a list of winners of the Academy Award for Performance by an Actress in a Supporting Role, presented annually by the Academy of Motion Picture Arts and Sciences (AMPAS) to an actress who has delivered an outstanding performance while working within the film industry.  More popularly known as the Academy Award (or the Oscar) for Best Supporting Actress, this award was initially presented at the 9th Academy Awards ceremony for 1936 and was most recently presented at the 88th Academy Awards ceremony for 2015.  Throughout the past 80 years, accounting for ties and repeat winners, AMPAS has presented a total of 81 Best Supporting Actress awards to 79 different actresses.  This list is current as of the 89th Academy Awards ceremony held on February 26, 2017.

Kon-Tiki (1950 film): Kon-Tiki is a Norwegian-Swedish documentary film about the Kon-Tiki expedition led by Norwegian explorer and writer Thor Heyerdahl in 1947, released in Sweden, Norway, Finland, and Denmark in 1950, followed by the United States in 1951.  The movie, which was directed by Thor Heyerdahl and edited by Olle Nordemar, received the Academy Award for Best Documentary Feature for 1951 at the 24th Academy Awards.  The Oscar officially went to Olle Nordemar.  It is currently the only feature film from Norway to have won an Academy Award.

AACTA Award for Best Documentary Series: The AACTA Award for Best Documentary Series, is a non-feature film award presented by the Australian Academy of Cinema and Television Arts (AACTA) to the producer of an Australian documentary series that is "a Television Program consisting of a potentially unlimited number of episodes but not less than 2 that is a creative treatment of actuality other than a news, current affairs, sports coverage, magazine, infotainment or light entertainment program."  Prior to the establishment of the Academy in 2011, the award was presented by the Australian Film Institute (AFI) at the annual Australian Film Institute Awards (more commonly known as the AFI Awards) from 2009–2010.  A single award for Best Documentary was handed out from 1958–2008, before it was split into three categories: Best Feature Length Documentary, Best Documentary Under One Hour and Best Documentary Series.  The award is presented at the AACTA Awards Luncheon, a black tie event which celebrates achievements in film production, television, documentaries and short films.

The Act of Killing: The Act of Killing (Indonesian: "Jagal" , meaning "Butcher") is a 2012 documentary film about individuals who participated in the Indonesian mass killings of 1965–66.  The film is directed by Joshua Oppenheimer and co-directed by Christine Cynn and an anonymous Indonesian.  It is a Danish-British-Norwegian co-production, presented by Final Cut for Real in Denmark and produced by Signe Byrge Sørensen.  The executive producers were Werner Herzog, Errol Morris, Joram ten Brink, and Andre Singer.  It is a Docwest project of the University of Westminster.  It won the 2013 European Film Award for Best Documentary, the Asia Pacific Screen Award, and was nominated for the Academy Award for Best Documentary Feature at the 86th Academy Awards.

Supporting paragraphs: The Tillman Story Hearts and Minds (film)
Answer: Hearts and Minds