The answer is … a little bit complicated.

Marvel Studios always gives fans a reason tostick around through the closing credits.

Is there anything waiting for moviegoers after the credits roll onAvengers: Endgame?

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Credit: ©Marvel Studios 2019

Its not a simple yes or no.

Instead, those who wait get a subtle audio Easter egg.

Some viewers describe it as a scraping noise, but its actually a banging.

Tom Hiddleston as Loki

Kevin Winter/Getty Images

Its a sound youve heard before Tony Stark forging his rudimentary first armor in 2008sIron Man.

Theres no music when it plays inEndgame, just the simple sound of a blacksmith at work.

Think of that sound as The Big Bang that introduced the Marvel Cinematic Universe.