Question: Which director is from Poland, Xawery Żuławski or Gregory Hoblit?

Context paragraphs:
Frequency (TV series): Frequency is an American drama television series that aired on The CW from October 5, 2016 to January 25, 2017.  Inspired by the 2000 Gregory Hoblit film of the same name, "Frequency" was developed by Jeremy Carver.  The show was canceled on May 8, 2017; five days later, an epilogue to the series was released.

Primal Fear (film): Primal Fear is a 1996 American neo-noir crime-thriller film, based on William Diehl's 1993 novel of the same name and directed by Gregory Hoblit.

Dr. Strange (1978 film): Dr. Strange is a 1978 television film based on the Marvel Comics fictional character of the same name, created by Steve Ditko.  Philip DeGuere directed the film and wrote it specifically for television, and produced the film along with Alex Beaton and Gregory Hoblit.  Stan Lee served as a consultant on the film, which was created as a pilot for a proposed television series.  "Dr. Strange" stars Peter Hooten in the title role, along with Jessica Walter, Eddie Benton, Clyde Kusatsu, Philip Sterling and John Mills.  The film aired on September 6, 1978, in a two-hour block from 8pm to 10pm on CBS, the same network that, at that time, aired "The Amazing Spider-Man" and "The Incredible Hulk"; CBS did not pick up "Dr. Strange" as a series.

Xawery Żuławski: Xawery Żuławski (born 22 December 1971 in Warsaw) is a Polish film director.

Gregory Hoblit: Gregory King Hoblit (born November 27, 1944) is an American film director, television director and television producer.  He is known for directing the critically acclaimed films "Primal Fear", "Frequency" and "Fracture".  He has won nine Primetime Emmy Awards for directing and producing "Hill Street Blues", "NYPD Blue", "L.A. Law", "Hooperman" and the television film "Roe vs. Wade".

Hart's War: Hart's War is a 2002 American thriller drama film about a World War II prisoner of war (POW) camp based on the novel by John Katzenbach.  It stars Bruce Willis as Col. William McNamara and Colin Farrell as Lt. Thomas Hart.  The film co-stars Terrence Howard, Cole Hauser and Marcel Iureş.  The film, directed by Gregory Hoblit, was shot at Barrandov Studios in Prague, and released on 15 February 2002.  The film earned mixed reviews and was a box office failure.

Fallen (1998 film): Fallen is a 1998 American supernatural detective thriller film directed by Gregory Hoblit, produced by Charles Roven and Dawn Steel, from a screenplay by Nicholas Kazan.  The film tells the story of John Hobbes, a Philadelphia police detective who is investigating murders committed by an apparent copycat killer.  The murderer is later revealed to be a fallen angel known as Azazel, who possesses human beings by touch.  Denzel Washington, Embeth Davidtz, James Gandolfini, John Goodman, Donald Sutherland and Elias Koteas star.  "Fallen" was released on January 16, 1998, by Warner Bros. The film grossed $25.2 million against its budget of $46 million.  It has a 40% approval rating at Rotten Tomatoes, which calls it "not all that thrilling".

Untraceable: Untraceable is a 2008 American thriller film starring Diane Lane, Colin Hanks, Billy Burke, and Joseph Cross.  It was directed by Gregory Hoblit and distributed by Screen Gems.

Polish-Russian War (film): Polish-Russian War (Wojna polsko-ruska) is a 2009 Polish film directed by Xawery Żuławski based on the novel Polish-Russian War under the white-red flag by Dorota Masłowska.

Frequency (film): Frequency is a 2000 American science fiction thriller drama film.  It was co-produced and directed by Gregory Hoblit and written and co-produced by Toby Emmerich.  The film stars Dennis Quaid and Jim Caviezel as father and son, Frank and John Sullivan respectively.  It was filmed in Toronto and New York City.  The film gained mostly favorable reviews following its release via DVD format on October 31, 2000.

Supporting paragraphs: Xawery Żuławski Gregory Hoblit
Answer: Xawery Żuławski