I can link them in 2 steps. Kevin Bacon was in the movie 'Death Sentence' with Kelly Preston, who is married to John Travolta.
Food and drink
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cells in an effort to produce energy, maintain life, or stimulate growth.
Historically, people secured food through two methods: hunting and gathering, and agriculture. Today, most of the food energy consumed by the world population is supplied by the food industry.
Cinema of the United States
John Joseph Travolta (born February 18, 1954) is an American actor, dancer, and singer. Travolta first became known in the 1970s, after appearing on the television series Welcome Back, Kotter and starring in the box office successes Saturday Night Fever and Grease. Travolta's acting career declined through the 1980s. His career enjoyed a resurgence in the 1990s with his role in Pulp Fiction, and he has since continued starring in more recent films such as Face/Off, Ladder 49, and Wild Hogs. Travolta was nominated for the Academy Award for Best Actor for Saturday Night Fever and Pulp Fiction. He won the Golden Globe Award for Best Actor - Motion Picture Musical or Comedy for his performance in Get Shorty.
The cinema of the United States, often generally referred to as Hollywood, has had a profound effect on cinema across the world since the early 20th century. Its history is sometimes separated into four main periods: the silent film era, classical Hollywood cinema, New Hollywood, and the contemporary period. While the French Lumière Brothers are generally credited with the birth of modern cinema, it is indisputably American cinema that soon became the most dominant force in an emerging industry. Since the 1920s, the American film industry has grossed more money every year than that of any other country.
In 1878, Eadweard Muybridge demonstrated the power of photography to capture motion. In 1894, the world's first commercial motion picture exhibition was given in New York City, using Thomas Edison's Kinetoscope. The United States was in the forefront of sound film development in the following decades. Since the early 20th century, the U.S. film industry has largely been based in and around Hollywood, Los Angeles, California. Picture City, FL was also a planned site for a movie picture production center in the 1920s, but due to the 1928 Okeechobee hurricane, the idea collapsed and Picture City returned to its original name of Hobe Sound. Director D. W. Griffith was central to the development of film grammar. Orson Welles's Citizen Kane (1941) is frequently cited in critics' polls as the greatest film of all time.
Kelly Preston (born Kelly Kamalelehua Smith; October 13, 1962) is an American actress and former model. Films she appeared in include Mischief, Twins and Jerry Maguire, among more than sixty roles on film and television. She is married to John Travolta.
Kevin Norwood Bacon (born July 8, 1958) is an American actor and musician whose notable roles include National Lampoon's Animal House (1978), Friday the 13th (1980), Diner (1982), Footloose (1984), Flatliners (1990), Tremors (1990), Wild Things (1998), JFK (1991), A Few Good Men (1992), The River Wild (1994), Murder in the First (1995), Apollo 13 (1995), Stir of Echoes (1999), Hollow Man (2000), Trapped (2002), Mystic River (2003), The Woodsman (2004), Death Sentence (2007), Frost/Nixon (2008), and X-Men: First Class (2011). He currently stars on the Fox television series The Following.
Bacon has won Golden Globe and Screen Actors Guild Awards, was nominated for an Emmy Award, and was named by The Guardian as one of the best actors never to have received an Academy Award nomination. In 2003, Bacon received a star on the Hollywood Walk of Fame.
Six Degrees of Kevin Bacon
"Death Sentence" is a short story by the American science-fiction writer Isaac Asimov. It was first published in the November 1943 issue of Astounding Science Fiction and reprinted in the 1972 collection The Early Asimov.
Theo Realo, an eccentric researcher, approaches a psychologist at Arcturus university. His story is that he's spent many years on an obscure out-of-the-way planet and has found evidence that it once formed part of a now-lost Galactic Federation, based on psychology far more advanced than that now known.
Six Degrees of Kevin Bacon is a parlor game based on the "six degrees of separation" concept, which posits that any two people on Earth are six or fewer acquaintance links apart. That idea eventually morphed into this parlor game, wherein movie buffs challenge each other to find the shortest path between an arbitrary actor and venerated Hollywood character actor Kevin Bacon. It rests on the assumption that any individual involved in the Hollywood, California, film industry can be linked through his or her film roles to Kevin Bacon within six steps. The game requires a group of players to try to connect any such individual to Kevin Bacon as quickly as possible and in as few links as possible. It can also be described as a trivia game based on the concept of the small world phenomenon. In 2007, Bacon started a charitable organization named SixDegrees.org.
A person's Erdős–Bacon number is the sum of one's Erdős number—which measures the "collaborative distance" in authoring mathematical papers between that person and Hungarian mathematician Paul Erdős—and one's Bacon number—which represents the number of links, through roles in films, by which the individual is separated from American actor Kevin Bacon. The lower the number, the closer a person is to Erdős and Bacon, and this reflects a small world phenomenon in academia and entertainment.
In general, to have a defined Erdős–Bacon number, it is necessary (but not sufficient) for one to have both appeared in a film and co-authored an academic paper. This is not a sufficient condition because it may still be impossible to reach Erdős through one's academic coauthors or Bacon through one's film co-appearances.