Michelle Dockery says goodbye to Downton Abbey in emotional behind-the-scenes Instagram 

have been capturing their emotional last days on set as they prepare to say farewell to the series. Michelle Dockery a.k.a. Lady Mary Crawley shared her own goodbye via Instagram on Monday, with a little help from Oliver and Zac Barker, who together play the role of Dockery’s onscreen son, George. 

“Today is the last day of what has been the most glorious 6 years of my life. I am so grateful to have been part of this family,” Dockery wrote in the caption. “Thank you to each and every one of you out there for watching.”

Today is the last day of what has been the most glorious 6 years of my life. I am so grateful to have been part of this family Thank you to each and every one of you out there for watching… @downtonabbey_official #LastDaysOfDownton #finalcountdown

Back in March, it was announced that the sixth season would be the series’ last. But there may be hope for a movie in the future.

“If we had gone to a season 7 or 8 we would have taken it that much further,” executive producer Julian Fellowes said during a final season press conference. “There’s speculation about whether we’ll ever make a 

 movie, we might, but there are no firm plans. But it means there’s a lot of rich [remaining] territory.” 

As for Dockery, she recently joined Charlotte Rampling, Emily Mortimer, and Harriet Walter for Ritesh Batra’s upcoming adaptation of 

. Filming for that project is slated to pick up later this month. 

 premieres in the U.S. Jan. 3 on PBS. To read more on the press conference with the cast and crew, head here.

Related Stories •Casting Net: Downton Abbey’s Michelle Dockery, more join The Sense of an Ending

•Downton Abbey cast on saying goodbye: ‘We didn’t want to leave’

•Downton Abbey final season gets U.S. premiere date

Tim McGraw covers Luke Bryan\'s \'Do I\' and it\'s awesome

Showtime renews \'Masters of Sex,\' \'Ray Donovan\'

Jeb Bush to appear on Stephen Colbert\'s first \'Late Show\'

\'Doctor Zhivago\' to be re-released in the U.K. for 50th anniversary

Vin Diesel shares sweet new photo of daughter Pauline

Vince Staples honors Ferguson protests at Brooklyn show

Hugh Jackman is living a \'Teenage Dream\' in new lip sync video

EWwy Awards 2015: Meet Your Winners

Celebrity Feuds: A look at famous Hollywood fights

See EW\'s Andy Cohen cover photo shoot outtakes

Victoria Justice, Lenny Kravitz, Ciara and More!