8. The cotton balls Buddy can't stop eating in the doctor's office were actually pieces of cotton candy that had yet to be dyed.
9. Buddy's all-sugar diet also became Ferrell's daily food intake while filming as he actually scarfed down all of that maple syrup-coated spaghetti and candy during scenes.
"I ingested a lot of sugar in this movie and I didn't get a lot of sleep," Ferrell told The Sun. "I constantly stayed up. But anything for the movie, I'm there. If it takes eating a lot of maple syrup, then I will, if that's what the job calls for."
10. The late James Caan didn't have to act all that hard to nail his role as Buddy's reluctant father Walter.
"I literally drove him crazy in that movie," Ferrell explained to Christina Applegate and Jamie-Lynn Sigler during a July 2024 appearance on their MeSsy podcast. “In between setups, he’d be like, 'I don’t get you. You’re not funny.' And I’m like, 'I know. I’m not Robin Williams.'"
But the dynamic worked, acknowledged Ferrell. “I love that the whole time, he’s not acting," he continued. "He’s truly annoyed with me. He’s like, 'Can this guy shut the f--k up?'"