Just this weekend, in a galaxy that’s real, real close, some movie fanatics learned their voices were more powerful than they could have possibly imagined.

Adam Driver as Kylo Ren in “Star Wars: The Force Awakens.”

Butt-Numb-A-Thon — that’s the off-the-wall film marathon masterminded over the years by film buff Harry Knowles, Drafthouse founder Tim League and Kristen Bell — was held this past weekend at Alamo Drafthouse. According to Knowles, attendees at this year’s 18th edition unwittingly attended a voice-over session Sunday for the eighth episode of the “Star Wars” franchise.

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Apparently, director Rian Johnson, who’s helming that upcoming film and is a longtime BNAT supporter, showed up this year with something special in mind.

When @rianjohnson asked if he could get crowd noises from #BNAT18 for #StarWarsEpisode8 "Yes" has never come faster, massive giggles

— Harry Knowles (@headgeek666) December 12, 2016

That’s right: Johnson asked a bunch of film geeks to scream into his phone and said the noises will make their way into the next intergalactic “Star Wars” adventure. (Besides “Rogue One,” of course.) Plenty of folks in the audience backed Knowles up on Twitter, too.

So, @rianjohnson just pumped up the BNAT audience by having us cheer & hiss, recorded it. "Next year you'll all be in a Star Wars movie."

— Eric Vespe (@EricVespe) December 11, 2016

#BNAT highlights: talking Robin Hood with @scottderrickson, screaming into the phone of @rianjohnson, SILENCE & that LOGAN footage

— Justin Jones (@justjustin42) December 11, 2016

Longtime #BNAT attendee @rianjohnson just led the audience in recording our audio cameo in a STAR WARS movie coming next year. Really.

— Moisés Chiullán (@moiseschiu) December 11, 2016

Excellent human @rianjohnson had us all cheer and boo and he recorded it and told us "Next year you'll all be in a STAR WARS movie." #BNAT

— Meredith Borders (@xymarla) December 11, 2016

No clues about what the sound will be used for, however. Johnson was mum on Twitter.

Lots of amazing stuff at this year's BNAT. The first 40 minutes of Logan we were shown was truly fantastic.

— Rian Johnson (@rianjohnson) December 11, 2016

Correction: An earlier version of this post referred to Kristen Bell as an actress. The Butt-Numb-A-Thon organizer is also the director of Fantastic Fest, not the star of “Frozen.”