Answer the question at the end by quoting:

Clemens was born in Dayton, Ohio, the fifth child of Bill and Bess (Lee) Clemens. He is of German descent, his great-grandfather Joseph Clemens having immigrated in the 1880s. Clemens's parents separated when he was an infant. His mother soon married Woody Booher, whom Clemens considers his father.
Clemens has appeared as himself in several movies and television episodes and has also occasionally acted in films. Perhaps best known was his appearance in the season three episode of The Simpsons ("Homer at the Bat") where he is hypnotized into thinking he is a chicken (he did his own clucking). Clemens has also made guest appearances as himself on the TV shows Hope & Faith, Spin City, Arli$$, and Saturday Night Live as well as the movie Anger Management, and makes a brief appearance in the movie Kingpin as the character Skidmark. He also is shown playing an actual game with the Houston Astros in the film Boyhood. He appeared in the 1994 movie Cobb as an unidentified pitcher for the Philadelphia A's. In 2003, he was part of an advertising campaign for Armour hot dogs with MLB players Ken Griffey Jr., Derek Jeter, and Sammy Sosa. Since 2005, Clemens has also appeared in many commercials for Texas-based supermarket chain H-E-B. In 2007, he appeared on a baseball-themed episode of MythBusters ("Baseball Myths"). He has also starred in a commercial for Cingular parodying his return from retirement. He was calling his wife, Debra Godfrey, and a dropped call resulted in his return to the Yankees. He released an early autobiography, Rocket Man: The Roger Clemens Story written with Peter Gammons, in 1987. Clemens is also the spokesperson for Champion car dealerships in South Texas. In April 2009, Clemens was the subject of an unauthorized biography by Jeff Pearlman, titled The Rocket that Fell to Earth-Roger Clemens and the Rage for Baseball Immortality, that focused on his childhood and early career and accused Mike Piazza of using steroids. On May 12, Clemens broke a long silence to denounce a heavily researched expose by four investigative reporters from the New York Daily News, called American Icon: The Fall of Roger Clemens and the Rise of Steroids in America's Pastime. Clemens went on ESPN's Mike and Mike show to call the book "garbage", but a review by Michiko Kakutani of The New York Times called the book "gripping" and compared it to the work of Bob Woodward.

what movies?

Perhaps best known was his appearance in the season three episode of The Simpsons ("Homer at the Bat")

Answer the question at the end by quoting:

John the Apostle (Aramaic: ywHnn shlyH' Yohanan Shliha; Hebrew: yvkhnn bn zbdy Yohanan ben Zavdi; Koine Greek: Ioannes; Coptic: or ; Latin: Ioannes; c. AD 6-100) was one of the Twelve Apostles of Jesus according to the New Testament, which refers to him as Ioannes. Generally listed as the youngest apostle, he was the son of Zebedee and Salome or Joanna.
The author of the Book of Revelation identifies himself as "Ioannes" ("John" in standard English translation) The early 2nd century writer, Justin Martyr, was the first to equate the author of Revelation with John the Apostle. Most biblical scholars now agree that these were not separate individuals and that John the apostle wrote the Book of Revelation. John the Presbyter, an obscure figure in the early church, has also been identified with the seer of the Book of Revelation by such authors as Eusebius in his Church History (Book III, 39) and Jerome. John is considered to have been exiled to Patmos, during the persecutions under Emperor Domitian. Revelation 1:9 says that the author wrote the book on Patmos: "I, John, both your brother and companion in tribulation... was on the island that is called Patmos for the word of God and for the testimony of Jesus Christ." Adela Yarbro Collins, a biblical scholar at Yale Divinity School, writes: Early tradition says that John was banished to Patmos by the Roman authorities. This tradition is credible because banishment was a common punishment used during the Imperial period for a number of offenses. Among such offenses were the practices of magic and astrology. Prophecy was viewed by the Romans as belonging to the same category, whether Pagan, Jewish, or Christian. Prophecy with political implications, like that expressed by John in the book of Revelation, would have been perceived as a threat to Roman political power and order. Three of the islands in the Sporades were places where political offenders were banished. (Pliny Natural History 4.69-70; Tacitus Annals 4.30) Some modern higher critical scholars have raised the possibility that John the Apostle, John the Evangelist, and John of Patmos were three separate individuals. These scholars assert that John of Patmos wrote Revelation but neither the Gospel of John nor the Epistles of John. For one, the author of Revelation identifies himself as "John" several times, but the author of the Gospel of John never identifies himself directly. Some Catholic scholars state that "vocabulary, grammar, and style make it doubtful that the book could have been put into its present form by the same person(s) responsible for the fourth gospel."

Can you tell me more about the book itself?
John the Presbyter, an obscure figure in the early church, has also been identified with the seer of the Book of Revelation by such authors