Think a roar, a breath, or a sound effect are free to use? Not if a studio got there first.

Here are some of the strangest and most iconic trademarks hiding in your favorite movies and shows:

Law & Order’s “DUN DUN” – Universal Television
The dramatic two-note sound effect that divides scenes in Law & Order is a protected audio trademark—and not available for your crime podcast without permission.

MGM’s Roar
That famous lion? Trademarked. But the sound might actually come from a tiger—audio engineers often enhanced it for dramatic effect. MGM has used at least seven different lions since 1917, but the roar remains a signature—and legally protected—sound mark.

Darth Vader’s Breathing – Lucasfilm / Disney
That slow, mechanical inhale-exhale isn’t just menacing—it’s trademarked. One of the most recognizable audio signatures in sci-fi history.

Tarzan’s Yell – Edgar Rice Burroughs Estate
Johnny Weissmuller’s jungle yell has been legally protected for decades. It’s one of the earliest examples of a sound tied to a fictional character.

“D’oh!” – The Simpsons / Fox / Disney
Homer’s iconic grunt is trademarked when used with official Simpsons content and merchandising.

The Vulcan Salute – Paramount / CBS
Spock’s hand gesture from Star Trek is protected when used commercially. Live long and litigate.

20th Century Fox Fanfare – 20th Century Studios / Disney
That brassy, booming intro before classic Fox films? It’s as protected as the logo itself.

Disney Castle & Opening Music – Disney
The animated castle and its sparkling audio theme are both trademarked. It's less fairy tale, more ironclad IP.

Trademark law may seem dry, but in Hollywood, it’s a form of brand magic. These sights and sounds aren’t just creative choices—they’re assets, carefully guarded to maintain identity and value.