Andy Warhol was a guest during his August 16, 1985 marriage to Madonna.

Was in attendance at Chris Penn's funeral.

Daughter, with Robin Wright Penn, Dylan Frances (b. 13 April 1991).

A popular indie-band in The Netherlands is called "Seanpenn".

He and his family moved out of Hollywood to Marin County, north of San Francisco because he was "tired of a lot of aspects of Los Angeles, the main one being raising the kids in a company town".

Brother of musician Michael Penn.

In October 2002, he bought a $56,000 ad in the Washington Post to publish an open letter to President George W. Bush asking him to slow down the march of war towards Iraq. He wrote it as a father of two children and as a son of a WW II veteran.

On September 11, 2004, he received the John Steinbeck award at the Palace of Fine Arts in San Francisco. The award is given out by the San Francisco Chronicle and benefits San Jose State University. The evening included film clips and discussion with Peter Coyote. The biggest surprise of the night was that Bruce Springsteen (a longtime friend of Sean's and the first recipient of the award) presented it to him.

Son, with Robin Wright Penn, Hopper Jack (b. 6 August 1993).

Briefly engaged to actress-photographer Pamela Springsteen, sister of Bruce Springsteen. Sean and Pamela Springsteen were both cast in Fast Times at Ridgemont High (1982).

Listed as one of twelve "Promising New Actors of 1984" in John Willis' Screen World, Vol. 36.

They lost their home in the Malibu fire in November 1993.

As of 2005, the only actor to ever receive a Best Actor nomination for a Woody Allen film, besides Woody Allen himself.

He and director Clint Eastwood discussed the possibility of Sean starring in Blood Work (2002). Though it didn't work out, they got the opportunity to work together later in Mystic River (2003).

Robin Wright Penn filed papers for divorce from Sean Penn after 11 years of marriage on December 21, 2007, citing irreconcilable differences. The couple is seeking joint custody of their two teenage children.

His car, a limited-edition 1987 Buick Grand National, was stolen in Berkeley months after his return from Iraq. Among the lost contents were 2 guns.

Brother-in-law of Aimee Mann.

Son of Leo Penn & Eileen Ryan and brother of actor Chris Penn.

Moved to Marin County (North of San Francisco) to avoid raising his children in Hollywood.

He toured Caracas, Venezuela with President Hugo Chávez. [August 2007]

Robin Wright Penn filed papers for divorce from Sean Penn after 11 years of marriage on December 21, 2007, citing irreconcilable differences. The couple is seeking joint custody of their two teenage children. In April 2008 they withdrew the petition.

Is an avid surfer.

Good friends with Metallica drummer Lars Ulrich.

Was in the same acting class as Michelle Pfeiffer at the end of the 70s or early 80s.

Refuses to talk about his ex-wife Madonna in interviews. On her 1989 "Like A Prayer" album, she wrote a song about their failed marriage called "Till Death Do Us Part".

His performance as "Jeff Spicoli" in Fast Times at Ridgemont High (1982) is ranked #9 on Premiere Magazine`s 100 Greatest Movie Characters of All Time.

Credits Malcolm McDowell as the best actor with whom he`s worked.

His father, Leo Penn, had been blacklisted in the 50s Hollywood.

His father was of mostly Russian and Lithuanian descent, but paternal grandfather, whose original surname was Pińon, was of Sephardic Jewish heritage. His mother was of Irish and Italian heritage. His paternal grandparents ran a Jewish deli for some time in New York.

Quit smoking for a while on his 40th birthday for health reasons. Prior to that, he was known as one of Hollywood`s heaviest smokers, smoking at least four packs of cigarettes a day.

His son is named after two family friends, Dennis Hopper and Jack Nicholson.

Ranked #76 in Empire (UK) magazine`s "The Top 100 Movie Stars of All Time" list. [October 1997]

Appeared with his brother Chris Penn in At Close Range (1986), in which their actress mother, Eileen Ryan, played their grandmother.

He and Robin Wright Penn lived together from 1991 until their marriage in 1996. They had two children before their marriage.

He served 32 days in jail in 1987 for hitting an extra.