Trivia: The end credits of the film don't have the usual "No animals were harmed during the filming..." Maybe this is because when the Little Mule 4WD is being chased, it clearly runs over a chicken.
Suggested correction: Not all films have this disclaimer, even if no animals were harmed, because the AHA has to be present and not all films are willing to pay for them to come out. Without any actual evidence of why this film doesn't have the disclaimer, this isn't trivia but speculation.
Suggested correction: I tripled checked the scene. The chicken did not get killed. It was under the truck but got away and wasn't killed.
The entry doesn't say the chicken was killed. But since you can see that the truck ran it over, the filmmakers probably weren't allowed to put the "No animals were harmed" section in the credits.
That's not entirely accurate. First off, the American Humane Association has to be on site to independently oversee animal treatment. If a film chooses not to hire them, they can not legitimately use the disclaimer, even if no animals were harmed. Since many filming locations were outside the US, it's unlikely they were present. Additionally, if the AHA is present and an animal was injured or killed but the production crew followed AHA guidelines, the film can still use the disclaimer.
Trivia: The film was written by Diane Thomas. Thomas was a struggling waitress and actress, and had been working odd jobs to make ends meet when she wrote the script. While there is some dispute over how it happened, eventually the script made its way to actor Michael Douglas, who championed Thomas and helped get the movie made. The script was so well-liked, she ended up getting numerous offers, and at one point was even attached to help write one of the "Indiana Jones" sequels. Sadly, she was killed in a car accident only a year after this movie's release, and it remains the only film she was credited for writing.
Trivia: The studio was so sure the film would be a flop, they preemptively fired director Robert Zemekis from his next project, "Cocoon," and instead gave the job to Ron Howard. Ironically, the film ended up being one of the top-ten grossing films of the year.