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.
The Ambassador Hotel was a hotel in Los Angeles, California, and location of the Cocoanut Grove nightclub until it was demolished in 2005.
 The hotel began operation formally on January 1, 1921, and subsequently was the site of the 2nd Academy Awards, the 3rd Academy Awards, the 5th Academy Awards, the 6th Academy Awards, the 12th Academy Awards, the 15th Academy Awards, and the June 1968 assassination of presidential candidate Robert F. Kennedy.
 The hotel closed to guests in 1989.
This is a list of Polish Academy Award winners and nominees.
 This list details the performances of Polish actors, actresses, and films that have either been submitted or nominated for, or have won, an Academy Award.
 This list is current as of the 80th Academy Awards ceremony held on February 24, 2008.
 There were 12 Academy Awards given to Polish filmmakers or their work (see Foreign Film category), including two Honorary Academy Awards and a Technical Achievement Award.
 The category of Cinematography has the strongest presence of Polish filmmakers, with two wins (both by Janusz Kamiński) and five other nominations (including two noms for Kamiński).
 As of that, the cinematographer Janusz Kamiński is the most Oscar-awarded Polish filmmaker.
 The second most-awarded Pole was designer Anton Grot, who won one Academy Award and was nominated to the Oscars five times more.
 The director Roman Polanski won an Oscar and was nominated four more times (additionally, "Knife in the Water", film directed and written by him was also nominated).
 The composer Bronislau Kaper was awarded an Oscar and was nominated three times more.
The Academy Honorary Award – instituted in 1948 for the 21st Academy Awards (previously called the Special Award, which was first presented in early 1929) – is given annually by the Board of Governors of the Academy of Motion Picture Arts and Sciences (AMPAS) to celebrate motion picture achievements that are not covered by existing Academy Awards, although prior winners of competitive Academy Awards are not excluded from receiving the Honorary Award.
 Unless otherwise specified, Honorary Award recipients receive the same gold Oscar statuettes received by winners of the competitive Academy Awards.
 Unlike the Special Achievement Award instituted in 1972 (and discontinued in 1995), those on whom the Academy confers its Honorary Award do not have to meet "the Academy's eligibility year and deadline requirements."
 Like the Special Achievement Award, the Special Award and Honorary Award have been used to reward significant achievements of the year that did not fit in existing categories, subsequently leading the Academy to establish several new categories, and to honor exceptional career achievements, contributions to the motion picture industry, and service to the Academy.
 The Academy Honorary Award is often awarded in preference to those with noted achievements in motion pictures who have nevertheless never won an Academy Award.
 Thus, many of its recipients are Classic Hollywood stars, such as Lillian Gish, Barbara Stanwyck, Kirk Douglas, and Lauren Bacall.
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.
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.
This is a list of winners of the Academy Award for Performance by an Actress in a Leading 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 Actress, 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 89 years, accounting for ties and repeat winners, AMPAS has presented a total of 90 Best Actress awards to 75 different actresses.
 This list is current as of the 89th Academy Awards ceremony held on February 26, 2017.
White Horse is a short documentary by filmmakers Maryann DeLeo and Christophe Bisson that features a man (Maxym Surkov) returning to his Ukraine home for the first time in twenty years.
 Evacuated from the city of Pripyat, Ukraine in 1986 due to the Chernobyl disaster, he has not returned since then.
 DeLeo is the same filmmaker of the 2004 Academy Award-winning short film "Chernobyl Heart".
Chernobyl Heart is a 2003 documentary film by Maryann DeLeo.
 The film won the Best Documentary Short Subject award at The 76th Academy Awards.
Bridegroom (full title: Bridegroom: A Love Story, Unequaled) is a 2013 American documentary film about the relationship between two young gay men, produced and directed by Linda Bloodworth-Thomason.
 "Bridegroom" premiered at the 2013 Tribeca Film Festival on April 23, 2013, and attracted further press coverage because its premiere screening at the festival was introduced by former President Bill Clinton.

Question: Did both Chernobyl Heart and Bridegroom win an award at the Academy Awards?
Answer: no