Russell Crowe originally decided to grow his hair long for the role of Robin Hood. He wore wigs in Body of Lies (2008) and State of Play (2009) to hide his long hair. But shortly before filming began, he decided to cut it short.
Alan Doyle, the actor who played one of Robin's cohorts (Allan A'Dayle), is the lead singer of the Canadian band Great Big Sea. He sings throughout the movie, usually while playing a stringed instrument.
The brown hood worn by Russell Crowe was won by the "Last Week Tonight With John Oliver" show at "Russell Crowe's 'Art of Divorce' Auction", which was held April 7, 2018. The hood (along with other memorabilia purchased in the auction), was given to the Anchorage, Alaska Blockbuster Video store in hopes of attracting customers to keep it open. Sadly, the Blockbuster store closed in summer 2018.
Ethan Reiff and Cyrus Voris's original script "Nottingham" was described as "Sherlock Holmes in Sherwood" or "CSI: Sherwood Forest", which turned the traditional story on its head by portraying the Sheriff of Nottingham in a more sympathetic light as a forensic detective, and Robin Hood as more of a villain. The script immediately drew the attention of Russell Crowe, who was keen to play the Sheriff. The script was sold overnight to Ron Howard's production company Imagine Entertainment after a bidding war, and Ridley Scott was soon attached as director. However, Scott demanded extensive re-writes by Brian Helgeland because he wanted a more action-driven story, and wanted the Sheriff of Nottingham to be a more conflicted character. However, Scott also rejected Helgeland's version, which supposedly had the Sheriff and Robin Hood being the same person. New rewrites were done by British playwright Paul Webb and later by Tom Stoppard, who reworked the story while the movie was already being filmed. Reportedly, $6.7 million was spent on the script and subsequent re-writes, during which the Sheriff character (played by Matthew Macfadyen) was reduced to a bit-part. Not much of the original screenplay survived except for a bigger role for maid Marion, but despite this, Reiff and Voris still retained a story credit.
Kate Winslet, Cate Blanchett and Rachel Weisz were, in that order, the three main candidates in consideration to play Maid Marian. After Winslet turned the part down, Blanchett was offered the role. Since she accepted, Weisz didn't get the offer.
George, the horse that Russell Crowe rode in Gladiator (2000), appears in this film. Similarly, Rusty, the white horse in this film, would work with Crowe again in Les Misérables (2012). Crowe claims that both horses recognized him, even after ten years in George's case.
According to Mark Strong, Sir Godfrey was originally called Conrad and was based on Guy of Gisbourne. He described the original character as having blond hair and a disfigurement from being struck by a crossbow bolt.
The battering ram used during the filming at the Bourne Wood in Surrey, which was nicknamed 'Rosie' by the film crew and is worth £60,000, was donated by Russell Crowe to a Scottish charity, the Clanranald Trust to be used for battle re-enactments at a fort named Duncarron, built in a forest near the Carron Reservoir in North Lanarkshire.
This movie contains seven Game of Thrones (2011) actors and actresses. This includes Max von Sydow (Sir Walter Loxley) who plays the Three-eyed raven, Mark Addy (Friar Tuck) who plays Robert Baratheon, Robert Pugh (Baron Baldwin) who plays Craster, Ralph Ineson (Northerner) who plays Dagmer Cleftjaw, Mark Lewis Jones (Stone Mason Longstride) who plays Shagga and Kerry Ingram (Village child) who plays Shireen Baratheon, and Bronson Webb (Jimoen) who plays Will the Nightwatch deserter.
Alan Doyle (Allan A'Dayle), a member of the band Great Big Sea, wrote the theme song for the show "Republic of Doyle", a detective series set in his native Newfoundland. Doyle and Scott Grimes (Will Scarlet) were often guest stars on the series. For the Season 3 premiere, Doyle and Grimes enlisted friends Russell Crowe (Robin Longstride) and Kevin Durand (Little John) to reunite in a special guest starring role.
Universal Pictures acquired the rights to Ethan Reiff and Cyrus Voris's spec script in an aggressive bidding contest with other studios such as New Line Cinema, Warner Bros., Sony, New Regency Enterprises, and DreamWorks.
The song "Women of Ireland- Mna na h-Eireann" played during a dance scene was previously featured in the Oscar-winning score of Stanley Kubrick's 1975 epic "Barry Lyndon". That earlier version was recorded by The Chieftans.
The same year as the film's release Arthur Darvill (Groom) joined the long-running BBC science fiction series Doctor Who (2005) (TV Series) as Rory Williams, the boyfriend of The Eleventh Doctor's (Matt Smith) new companion Amy Pond (Karen Gillan). Patrick Troughton whom played played The Second Doctor in the series had played Robin Hood in the 1953 mini-series and his grandson actor Sam Troughton played Robin Hood's sidekick Much in Robin Hood (2006) (TV Series). In Season 8, The Twelfth Doctor (Peter Capaldi) and his companion Clara Oswald (Jenna Coleman) meet Robin Hood (Tom Riley).
Stephen Armourae: Stage actor who played Robin Hood on stage in London, England in 2008, appears as a French Lord alongside Mark Strong, with a beard and mustache. He later also appears clean-shaved as a Baron in the Magna Carta scene.