Benjamin Christensen (28 September 1879 – 2 April 1959) was a Danish film director, screenwriter and an actor both in film and on the stage.
 As a director he is most well known for the 1922 film "Häxan" and as an actor, he is best known for his performance in the film "Michael" (1924), in which he plays Claude Zoret, the jilted lover of the film's title character.
Len Ryan Wiseman (born March 4, 1973) is an American film director, screenwriter and producer.
 He is best known for his work on the "Underworld" series, "Live Free or Die Hard", and the 2012 film "Total Recall".
Lady with the Light Gloves (Danish: "Damen med de lyse handsker" ) is a 1942 Danish drama film written and directed by Benjamin Christensen.
 It was the final film that Christensen directed.
The Devil's Circus is a 1926 silent drama film directed by Danish director Benjamin Christensen, based upon his screenplay.
 The film stars Norma Shearer and Charles Emmett Mack.
 It was the first of seven films directed by Christensen in the United States, and one of only four of those films that have not been lost.
Häxan (Danish title: Heksen; English title: The Witches or Witchcraft Through the Ages) is a 1922 Swedish-Danish documentary-style silent horror film written and directed by Benjamin Christensen.
 Based partly on Christensen's study of the "Malleus Maleficarum", a 15th-century German guide for inquisitors, "Häxan" is a study of how superstition and the misunderstanding of diseases and mental illness could lead to the hysteria of the witch-hunts.
 The film was made as a documentary but contains dramatised sequences that are comparable to horror films.
The Mysterious X (Danish: "Det hemmelighedsfulde X" ) is a 1914 Danish silent drama film directed by Benjamin Christensen.
 It was Christensen's directorial debut.
 Prints of the film exist in the Det Danske Filminstitut and the Museum of Modern Art.
Underworld is a 2003 action horror film directed by Len Wiseman and written by Danny McBride, based on a story by McBride, Kevin Grevioux, and Wiseman.
 The film centers on the secret history of vampires and lycans (an abbreviated form of "lycanthrope", which means werewolf).
 It is the first installment in the "Underworld" franchise.
 The main plot revolves around Selene (Kate Beckinsale), a vampire Death Dealer hunting Lycans.
 She finds herself attracted to a human, Michael Corvin (Scott Speedman), who is being targeted by the Lycans.
 After Michael is bitten by a Lycan, Selene must decide whether to do her duty and kill him or go against her clan and save him.
 Alongside Beckinsale and Speedman, the film stars Michael Sheen, Shane Brolly, and Bill Nighy.
The Woman Who Did (German: Die Frau mit dem schlechten Ruf, English: The Woman with the Bad Reputation) is a 1925 German silent drama film directed by Benjamin Christensen and starring Lionel Barrymore, Gustav Fröhlich and Alexandra Sorina.
 It was an adaptation of the 1895 British novel "The Woman Who Did" by Grant Allen.
 The film's art direction was by Hans Jacoby.
Johan Valdemar Ankerstjerne (17 January 1886 – 18 August 1959) was a Danish cinematographer who for many years was head of cinematography at Nordisk Film.
 He was reportedly the best cameraman in Denmark in the 1910s, making many films for August Bloom from 1911 until 1916 and then for Benjamin Christensen.
 He created the unique "images of Haxan".
 In 1932 he founded Denmark's first film laboratory, Johan Ankerstjerne A/S which, after merging with Nordisk Film Teknik, became the largest production facility in the country.
The Haunted House is a 1928 American silent comedy-drama film directed by Benjamin Christensen.
 Christensen also wrote the script under the name "Richard Bee".
 The film stars Larry Kent and Thelma Todd and is based on Owen Davis's 1924 Broadway play of the same name.
 "The Haunted House" is now presumed lost, but the entire Vitaphone soundtrack featuring music and sound effects survives and can be heard at archive.org as part of the Vitaphone Varieties lineup.

Question: Are both Benjamin Christensen and Len Wiseman directors?
Answer: yes