Title: In Cold Blood
Content:  his portrayal of Truman Capote, Clifton Collins Jr. as Perry Smith, and Catherine Keener as Harper Lee. The film was critically acclaimed, won at the 78th Academy Awards for Best Actor (Hoffman), and was nominated for Best Picture, Best Supporting Actress (Keener), Best Director (Bennett Miller), and Best Adapted Screenplay (Dan Futterman). J. T. Hunter's novel In Colder Blood (2016) discusses Hickock and Smith's possible involvement in the Walker family murders. Oni Press published Ande Parks and Chris Samnee's graphic novel Capote in Kansas (2005). Capote's book was adapted by Benedict Fitzgerald into the two-part television miniseries In Cold Blood (1996), starring Anthony Edwards as Dick Hickock, Eric Roberts as Perry Smith, and Sam Neill as Alvin Dewey.
Title: In Cold Blood
Content:  Three film adaptations have been produced based upon the book. The first focuses on the details of the book, whereas the later two explore Capote's fascination with researching the novel. In Cold Blood (1967) was directed by Richard Brooks and stars Robert Blake as Perry Smith and Scott Wilson as Richard Hickock. It features John Forsythe as investigator Alvin Dewey from the Kansas Bureau of Investigation who apprehended the killers. It was nominated for Best Director, Best Original Score, Best Cinematography, and Best Adapted Screenplay. The second and third films focus on Capote's experiences in writing the story and his subsequent fascination with the murders. Capote (2005) stars Philip Seymour Hoffman, who won the Academy Award for Best Actor 
Title: In Cold Blood (miniseries)
Content:  In Cold Blood is an American true crime drama television miniseries directed by Jonathan Kaplan and written by Benedict Fitzgerald. It is based on the 1966 novel of the same name by Truman Capote, which reconstructs the 1959 murders of the Clutter family in Holcomb, Kansas. The miniseries stars Anthony Edwards, Eric Roberts, and Sam Neill, with Leo Rossi, Louise Latham, Gwen Verdon, Bethel Leslie, L. Q. Jones, Gillian Barber, and Kevin Tighe in supporting roles. In Cold Blood received critical acclaim and two Primetime Emmy Award nominations, including Outstanding Miniseries. Roberts was nominated for a Golden Satellite Award for his portrayal of mass murderer Perry Smith.
Title: Capote (film)
Content:  Capote is a 2005 biographical drama about American novelist Truman Capote directed by Bennett Miller, and starring Philip Seymour Hoffman in the titular role. The film primarily follows the events during the writing of Capote's 1965 nonfiction book In Cold Blood. The film was based on Gerald Clarke's 1988 biography Capote. It was released September 30, 2005, coinciding with Capote's birthday. The film received acclaim from critics for Hoffman's lead performance and won several awards, including the Academy Award for Best Actor, for his portrayal of the title character.
Title: In Cold Blood (film)
Content:  In Cold Blood is a 1967 American neo noir crime film written, produced and directed by Richard Brooks, based on Truman Capote's 1966 nonfiction book of the same name. It stars Robert Blake as Perry Smith and Scott Wilson as Richard "Dick" Hickock, two men who murder a family of four in Holcomb, Kansas. Although the film is in parts faithful to the book, Brooks made some slight alterations, including the inclusion of a fictional character, "The Reporter" (played by Paul Stewart). The film was shot on location at sites where Smith and Hickock's crimes occurred, including the real Clutter home where they robbed and murdered all four members of the family. The film was nominated for four Academy Awards: Director, Original Score, Cinematography, and Adapted Screenplay. Noted by film historians as an early example of Hollywood new realism, the film was selected in 2008 for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".
Title: Truman Capote
Content:  Anthony Edwards and Eric Roberts headed the cast of the 1996 In Cold Blood miniseries, directed by Jonathan Kaplan. ; The TV movie Truman Capote's A Christmas Memory (1997), with Patty Duke and Piper Laurie, was a remake of the 1966 television show, directed by Glenn Jordan. ; In 2002, director Mark Medoff brought to film Capote's short story "Children on Their Birthdays", another look back at a small-town Alabama childhood.  "One of the things the movie does best is transport you back in time and into nature. In the early scenes as Joel leaves his aunt's home to travel across the 
Title: In Cold Blood (film)
Content:  Brooks, an acquaintance of Truman Capote, was given early drafts of Capote's book In Cold Blood before it was completed, as Capote was considering optioning a film version. Otto Preminger had initially expressed interest in directing an adaptation, but Brooks agreed to the project and purchased the rights from Capote for an estimated $400,000. Brooks's screenplay followed the structure of the book closely, shifting between Smith and Hickock and the Clutter family, though slight details were included that were not present in the source material. In his adaptation, Brooks intended to demonstrate the "indignity" of capital punishment through an exchange between Smith and a jail guard that occurs at the end of the film, in which Smith asks to use the bathroom before his execution, fearing he will "mess himself" 
Title: In Cold Blood (film)
Content:  A 1996 miniseries was also made based on the book, directed by Jonathan Kaplan and with a screenplay by Benedict Fitzgerald. In that adaptation, Anthony Edwards portrayed Dick Hickock, Eric Roberts played Perry Smith, and Sam Neill played Kansas Bureau of Investigation detective Alvin Dewey.
Title: Clutter family murders
Content: In Cold Blood (1967 film) – Robert Blake, portrayed Smith; Scott Wilson portrayed Hickock. ; In Cold Blood (1996 TV miniseries) – Eric Roberts portrayed Smith; Anthony Edwards portrayed Hickock. ; Capote (2005 film) – Clifton Collins Jr. portrayed Smith; Mark Pellegrino portrayed Hickock; Philip Seymour Hoffman portrayed Truman Capote. For his performance, Hoffman won the Academy Award for Best Actor. ; Infamous (2006 film) – Daniel Craig portrayed Smith; Lee Pace portrayed Hickock; Toby Jones portrayed Capote; Sandra Bullock portrayed Lee. ; Once Upon a Crime, Season 5 Episode 1 of  A Crime to Remember (2013-2018 documentary series) – The series tells the stories of notorious crimes by switching between dramatization and interviews with crime experts and/or people involved in the crimes. 
Title: Holcomb, Kansas
Content:  several days after he read a news article in a New York paper in 1959 about the murders. The best-selling book, in turn, spawned several filmed versions of the story: director Richard Brooks' theatrical feature film In Cold Blood in 1967 starring Robert Blake, Scott Wilson and John Forsythe, and a two-part 1996 TV miniseries adaptation starring Eric Roberts, Anthony Edwards and Sam Neill that aired on network TV in 1996. Portions of the 1967 theatrical film were shot on location in and around Holcomb and nearby Garden City, including the actual house where the crimes took place. The 2005 movie Capote, directed by Bennett Miller, is also about the author Capote, and the crimes in Holcomb. The 2006 film Infamous, starring Toby Jones as Capote, covers much of the same material.

Question: who played truman capote in in cold blood?
Answer: Philip Seymour Hoffman.