Question: Are Jan Troell and Gene Nelson both directors?

Context paragraphs:
Zandy's Bride: Zandy's Bride is a 1974 American film directed by Jan Troell.  It stars Gene Hackman and Liv Ullmann.

Gene Nelson (baseball): Wayland Eugene Nelson II (born December 3, 1960), is a former professional baseball player who pitched in the Major Leagues from 1981 to 1993.  After beginning his career as a starting pitcher with the New York Yankees and Seattle Mariners, Nelson gradually converted to a relief role starting in 1983.  He was a key member of the ace relief staff that helped propel the Oakland Athletics to three pennant-winning seasons from 1988 to 1990, frequently setting up Dennis Eckersley for his saves.  Nelson posted a 1.57 ERA in 1990 and earned a 9-6 record in 1988.  After seeing his performance slip in 1991 and 1992, he closed out his career in 1993 with a 3.12 ERA while pitching for the California Angels and Texas Rangers.  Gene Nelson Boulevard, which leads to the Little League fields at John S. Burks Memorial Park in Dade City, FL, is named after Nelson, who grew up there.  Gene Nelson is married.

Everlasting Moments: Everlasting Moments (Swedish: Maria Larssons eviga ögonblick ) is a 2008 Swedish drama film directed by Jan Troell, starring Maria Heiskanen, Mikael Persbrandt and Jesper Christensen.  It is based on the true story of Maria Larsson, a Swedish working class woman in the early 20th century, who wins a camera in a lottery and goes on to become a photographer.  It has been compared to Troell's previous films "Here's Your Life" and "As White as in Snow", which are both set around the same period.

Bang! (film): Bang!  is a 1977 Swedish drama film directed by Jan Troell.  It was entered into the 1977 Cannes Film Festival.  Håkan Serner won the award for Best Actor at the 13th Guldbagge Awards.

Jan Troell: Jan Gustaf Troell (born 23 July 1931) is a Swedish film director.  Usually, Troell writes his own scripts and serves as his own director of photography.  His realistic films, with a lyrical photography in which nature is prominent, have placed him in the first rank of modern Swedish film directors along with Ingmar Bergman and Bo Widerberg.

44th Guldbagge Awards: The 44th Guldbagge Awards ceremony, presented by the Swedish Film Institute, honored the best Swedish films of 2008, and took place on 12 January 2009. " Everlasting Moments" directed by Jan Troell was presented with the award for Best Film.

Land of Dreams (1988 film): Land of Dreams is a 1988 Swedish essay film by Jan Troell.  Its original Swedish title is Sagolandet, which means "The land of tales".  Through a series of reportages from contemporary Sweden, Troell uses the film to ponder on the country's transformation since his childhood, into a society he argues has become permeated by rationality at the expense of creativity.  Interweaved with the reportages are conversations with the American existential psychologist Rollo May, the politician Ingvar Carlsson soon before he became the prime minister of Sweden, and former prime minister Tage Erlander.  Filming took place from 1983 to 1986.

Gene Nelson: Gene Nelson (March 24, 1920 – September 16, 1996) was an American dancer, actor, screenwriter, and director.

A Frozen Dream: A Frozen Dream ("En frusen dröm") is a documentary film released in 1997 as a followup to the 1982 Swedish movie "Flight of the Eagle", both directed by Jan Troell.  The documentary describes the ill-fated attempt to fly over the North Pole in a hydrogen balloon by Salomon August Andrée in 1897.

The New Land: The New Land (Swedish: Nybyggarna ) is a 1972 Swedish film co-written and directed by Jan Troell and starring Max von Sydow, Liv Ullmann and Eddie Axberg.  The film is a sequel to Troell's 1971 film "The Emigrants", and both are based on "The Emigrants" novels by Vilhelm Moberg.  Drawing its story from the last two novels, "The Settlers" and "The Last Letter Home", the film is about the Swedish immigrants establishing their home in Minnesota, during the Dakota War of 1862.

Supporting paragraphs: Jan Troell Gene Nelson
Answer: no