Yeah, turns out the add that in post production.
But that doesn't always stop the actors in our favorite action movies from making the noises anyway. And can you blame them? They've got to imagine they're flying around and fighting bad guys in the middle of a bright green room. You'd be making the noises too.
This Star Wars actor apparently had a hard day at work:
"When filming in Star Wars: Episode I - The Phantom Menace (1999), he kept imitating the noise of the lightsaber during his fights. George Lucas explained many times that this would be added in by the special effects people later on. Ewan said "I keep getting carried away."
Pa-too! Pa-too! You *know* this guy was making the noises while he was up in the Falcon harness. Look at how excited he gets just playing charades!
Neil Patrick Harris
"I've got some moves baby" and you can listen to him adding his own personal soundtrack to the game Batman: Arkham Knight here. "Grapple it!"
When he talked about Guardians of the Galaxy on Jimmy Kimmel Pratt revealed that he kept ruining a $150,000 action scene because he kept making the laser gun noises.
The question now is: Where are the bloopers?
And how many other actors have done this? I think it's time for Jennifer Lawrence to fess up.