Trivia / Here Comes the Boom

  • Casting Gag: Albeit an obscure, most likely unintentional one that the aforementioned Charice may have found to be funny. Salma Hayek's character is named Bella Flores, and while the character is of Hispanic origin, Bella Flores also happens to be the name of a Filipino actress known for playing physically-unattractive villains.
  • The Cast Show Off: Malia, one of Scott's students, sings with the school Orchestra just before his UFC fight... which makes sense, as she is played by singer/songwriter Charice.
  • Cast the Expert: Various UFC figures portray themselves, and Niko and Ken Dietrich are portrayed by mixed martial artists Bas Rutten and Krzysztof Soszyński.
  • Product Placement: The film is basically The Wizard for the UFC.