Trivia: Even though Angelina Jolie plays Colin Farrell's mother in the movie, she is only a year older than Farrell.
Trivia: Christian Bale nearly played George W. Bush in the Oliver Stone-directed film W, but left the project because he didn't like the prosthetics he had to wear.
Trivia: Although Adrian Brody was officially the star of "Hollywoodland," his character (private detective Louis Simo) was a completely fictional role in the movie. Virtually all of the other characters in the film are based on real people, but there never was a Louis Simo, and he's not based on any actual person (s). George Reeves' mother did hire an attorney and a detective agency in real life; however, "Hollywoodland" director Allen Coulter said that the character of Louis Simo wasn't even partially based on anyone in real life.
Trivia: Anthony Quinn won the Best Supporting Actor Academy Award for his role of Paul Gaugin, even though he was only on screen for eight minutes.
Trivia: Richard Farnsworth earned an Academy Award nomination for Best Actor for his portrayal as Alvin Straight. At the age of 79, Farnsworth was at the time the oldest person to be nominated for a Best Actor Oscar.
Trivia: Christian Bale was originally cast as George W. Bush, but left the production before filming started. Josh Brolin was cast at the last minute instead.
Trivia: Glenn Close is only twelve years older than John Hawkes, who plays her son.
Trivia: This was the first biographical film to win the Academy Award for Best Picture.
Trivia: Throughout the movie, Kurt Warner wore jersey #13, but he is also known as jersey #10 for the St. Louis Rams in the 1999 play-offs.
Trivia: The young nun in the hospital who informs Hoffa and Bobby that Flynn is dying is played by Jack Nicholson's daughter.
Trivia: When the screenwriter was pitching the film back in the 90's, reportedly at one meeting an executive suggested in all seriousness that Julia Roberts should play Harriet Tubman. When another person in the room mentioned that it wouldn't make any sense for the (very white) Roberts to play the role of Tubman, he responded "It was so long ago! Nobody would know the difference!"
Trivia: The Grand National sequence towards the end of the film combines filmed footage with real footage of the 1983 Grand National.
Trivia: Danielle Darrieux plays Richard Burton's mother in this film. Darrieux (born 1917) was only eight years older than Burton (born 1925).
Trivia: The film was to have run six hours with two intermissions, but it was cut down to four with one.
Trivia: Lars requested (demanded) a "Mustang [Boss] 302" from the police to flee the bank robbery. Lars did not specify what year, but 1969-1972 and, possibly, 1973 are relevant to the August 23, 1973 real-life incident. The Mustang 302 was blue and it might seem easy to identify its shade, but that's not the case. Historically, there have been almost 900 colors for the Mustang's paint and there are a variety of blues. "Grabber Blue" was popular when the Mustang 302 emerged, as was "Acapulco Blue."
Trivia: Before production began, Judi Dench was still suffering from a toe injury she obtained whilst working on her previous movie. She didn't tell anyone about the injury as she didn't want to lose her role.
Trivia: Anne Bancroft, who plays Lady Jennie Churchill, was only 10 years older than Simon Ward, who plays her son.
Trivia: Meryl Streep's role is the only performance for which Wes Craven directed an actor to an Academy Award nomination.
Trivia: Although Lionel Jeffries and John Fraser play father and son in this film, Jeffries was only five years older than Fraser.