Should you wait around for the credits of Avengers: End Game??

Spoiler Alert: This is technically a spoiler for"Avengers: Endgame", but it's really not much of one. And frankly, it could save you from sitting through the credits . . . which are bound to be massively long.

So, if you're still with me, here we go . . .

There are NO mid-credit or post-credit scenes. But there's SOMETHING at the very end of the credits. It's the sound of metal clanking when the final Marvel logo appears.

Nobody knows what it means . . . or if it even means ANYTHING. 

Someone speculated that it could be the sound of Tony Stark making his first Iron Man suit . . . which would kind of bring us full-circle to the very beginning of the Marvel Cinematic Universe. 

Or it could just be something to make us spend countless hours speculating.