Young Han Solo Movie Begins Production, Continues the 'Star Wars' Tradition of Unusual Working Titles

Production on young Han Solo's standalone Star Wars movie is underway, and it's got a brilliant working title: Red Cup.

Get it? It's a pun on red Solo cups. And his name is Solo. Also, it's a solo project. Either way, it's the best advertisement for the iconic plastic cup company since Toby Keith's 2011 single "Red Solo Cup" or the invention of beer pong.

It's important to note that Red Cup obviously won't be the actual title of the film, it's just the place-filler title that production uses until Disney announces the real name closer to the time of release.

WATCH: Harrison Ford Has Lunch With Young Han Solo Alden Ehrenreich -- See the Pic!

Almost every entry in the Star Wars franchise has had an interesting working title. Return of the Jedi was famously called "Blue Harvest," The Phantom Menace was "The Doll House," Attack of the Clones was called "Cue Ball," Revenge of the Sith was known as "The Bridge," and The Force Awakens had the working title "Avco" -- named after the theater director J.J. Abrams watched his first Star Wars movie as a kid.

The recently-released Rogue One: A Star Wars Story went by the working title "Los Alamos," and The Last Jedi, which was only announced as the official title of Star Wars: Episode VIII earlier this month, was initially called "Space Bear."

While everything about the production of Red Cup is a closely guarded secret, fans are already really exciting about the few details we know so far.

The film is being directed by filmmaking duo Chris Miller and Phil Lord -- who previously helmed 21 Jump Street and The Lego Movie -- and stars Alden Ehrenreich as a young Han Solo.

WATCH: Alden Ehrenreich Officially Introduced as New Han Solo at 'Star Wars Celebration'

Woody Harrelson and Emilia Clarke have also been confirmed as castmembers, although their roles have not been officially revealed. Atlanta star and creator Donald Glover is set to play a young Lando Calrissian.

ET's Ashley Crossan caught up with Ehrenreich at the opening night of the AFI Fest earlier this year, where he opened up about acting opposite Glover.

"I'm really excited to work with him. I think he's going to be great in the role," Ehrenreich shared. "I think he's awesome. He's such an interesting guy and a wonderful actor, and I think he's just going to do something with that role that is going to be really exciting for everybody."

WATCH: Donald Glover Shares His Mom's Advice For Playing Lando Calrissian: 'Don't Mess It Up'

For more from the 27-year-old Hail, Caesar star on his excitement over starring in the upcoming Star Wars project, check out the video below.

Red Cup, or whatever it will eventually be titled, is set to hit theaters May 25, 2018, just five months after Star Wars: The Last Jedi cruises into theaters on Dec. 15.

EXCLUSIVE: Alden Ehrenreich 'Really Excited' to Work With Donald Glover in Han Solo 'Star Wars' Movie

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