Originally intended to be released in July 2017, then it was pushed back to December 22nd the same year, then it was pushed forward to December 15th, releasing the same day as Star Wars: Episode VIII - The Last Jedi (2017).
Many of the character's names are little puns or at least apt descriptions of the characters themselves. Guapo is a Spanish slang term for "big tough guy" but can also refer to one who thinks he is "all that" which is exactly like the character who is always flashing a smile and likes to strike poses. Valiente means brave or valiant, which we don't see from said character until later. Bones is so skinny you can see his bones through his hide, namely his pelvic bones. Maquina means machine, and we see this in how he dances like a robot, conducts electricity, and the rumor that he was made in a lab. Una, Dos, and Quatro mean One, Two, and Four. Angus is a common Scottish name but also the name for a breed of Scottish cattle. El Primero is less of a name and more of a title, and it means "The First" or in this case more likely, "The Best". Some other names aren't quite as clear. Lupe sounds like "loopy", American vernacular for crazy and even Nina when written as niña means "girl". Lupe is short for Guadalupe (Virgen of Guadalupe)
This film marks the third Blue Sky Studios film that's based on a book, after Dr. Seuss' Horton Hears a Who! (2008) and Epic (2013). (Not counting The Peanuts Movie (2015) which is based on a comic strip).
This is the second Blue Sky Studios film, based on a book and animation, to have an original theme music being remade by its film composer. The first was The Peanuts Movie's (2015) "Linus and Lucy", "Skating", "Christmas Time Is Here", and "Christmas is Coming" having been remade by Christophe Beck. The second is Ferdinand's (2017) "Flower Theme" being remade by John Powell.
First lead role in an animated project for John Cena. Before that, he had previously landed the lead roles in Dave the Barbarian and the pilot to Ultimate Muscle: The Kinnikuman Legacy (2002), but both were never released to the public. He had also auditioned for Ron Stoppable in Kim Possible (2002).
John Powell also scored some of the previous films produced by Blue Sky Studios, which were Robots (2005), Ice Age: The Meltdown (2006), Ice Age: Dawn of the Dinosaurs (2009), Ice Age: Continental Drift (2012), Rio (2011), Rio 2 (2014), and Dr. Suess' Horton Hears a Who! (2008).
Blue Sky Studios's 9th PG Rated Movie, of which all their films but Horton Hears a Who! (2008), Rio 2 (2014) and The Peanuts Movie (2015) have been Rated, as well as their 4th non-Ice Age film to have that rating.
Possibly a nod to John Cena's co-worker Dwayne Johnson (the Rock), in the scene where Ferdinand wakes the rooster, you see that Jorgé is the same colors as HeiHei from Moana (2016). Jorge and HeiHei are phonetically similar, and comedic relief.
In one scene while the Bulls and Hedgehogs are driving, and get confused of which direction to turn from where they're facing, Lupe (Kate McKinnon) tells them they're facing the same direction. This joke was also used with McKinnon's character Stella in Angry Birds (2016) when there was confusion of which direction to launch her from the Slingshot during the battle scene.
On screen Body Count: 1, Ferdinand's Father, (off screen: all other bulls from la casa del toro). or 0 if you count Guapo and Tres as someone whom you thought was dead turning out to be alive after all.
El Primero is the fourth character in a Blue Sky Studios movie to be a secret villain the previous three films where a character does something like that are Robots (2005) with Ratchet, Ice Age The Meltdown (2006) with the Lone Gunslinger Vulture and Horton Hears a Who (2008) with Sour Kangaroo this means that El Primero is the secret main antagonist.