- Creator's Oddball: This film marks Henry Joost and Ariel Schulman’s first family friendly project. Their previous films have all been R-rated with the exception of the PG-13 Nerve.
- Dueling Works: With Samaritan. Both are superhero movies unconnected to existing IP that follow a young boy encountering a mighty hero. The big difference is Secret Headquarters is a lighthearted family comedy, while Samaritan is a melancholy adult drama.
- What Could Have Been: Was originally to be released in theaters until it was moved to streaming for unknown reasons.
http://tvtropes.org/pmwiki/pmwiki.php/Trivia/SecretHeadquarters
FollowingTrivia / Secret Headquarters
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