EXCLUSIVE: Go Behind the Scenes of Lena Dunham and 'Girls' Cast's Emotional Last Days on Set

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It’s so hard to say goodbye, especially to a beloved series
like HBO’s Girls, which aired its series finale on April

Of course, it’s been an extended departure for creator and
star Lena Dunham as well as the rest of the cast, who completed
filming of the series in 2016. “It’s the longest goodbye ever,” Andrew Rannells told ET last year.  The actor who played Elijah on the
series joked that he would be doing it all summer -- not to mention the past
few months as the final episodes aired on HBO. 

While there have been plenty of exit interviews and
celebrations for the series, there have also been tears, especially on set as
each cast member’s storyline came to a close. In ET’s exclusive peek behind the
scenes, fans get to see just how emotional it was for everyone as Jemima Kirke,
Zosia Mamet, Allison Williams, Dunham and executive producer
Jenni Konner
all wrapped production on Girls.

MORE: An Oral History of 'Girls' Fan and Cast Favorite: 'Welcome to Bushwick aka the Crackcident'

Dunham took to Instagram in September to share her
final thoughts. “Gonna miss this job,” she wrote in one post, adding that there was “45 minutes of
sobbing” in another.

“I couldn't feel luckier that I got to play [Marnie],” Williams wrote in an emotional Instagram posted her last day on

“Personally, it's very weird, the idea that I'll never play
Marnie again,” the actress previously told ET. “So, I'm just going to leave it
all out there because I can't really go back. I can't make any adjustments.”

The bonus footage -- which also includes “Inside the
Episode” featurettes -- comes from the upcoming Digital Download (available May
15) and DVD/Blu-ray releases (July 25) of Girls’ sixth and final