Michelle Dockery Is 'Positive' a 'Downton Abbey' Movie Will Happen

— -- Michelle Dockery's "Good Behavior" may indirectly be filling a void for her fans still clinging on to the days of "Downton Abbey."

To be clear, Dockery's role in the new TNT drama is not at all similar to her former character, the lovely Lady Mary Crawley. But for many, that's what makes it so special. Dockery recently stopped by ABC's "Popcorn With Peter Travers" to talk about her new role as Letty Raines, a woman with a shady past who's fresh out of jail.

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"You’re introduced to her and she is, of course, a thief. She enjoys this reckless danger that her life often entails," Dockery said. "But she’s reached a point where she can’t go on anymore with this lifestyle. And what she is longing for is to have her son back. She’s trying to be the best version of herself, trying to be good."

This time, Dockery is much more of a free spirit. Her character changes looks and has some attitude. Gone are the long dresses, the British accent and sophistication. But for those still missing Lady Mary, Dockery shared good news, saying she expects there's more to come.

"There may be a feature film. It seems to be quite a challenge getting all of us together," Dockery, 34, told Peter Travers. "I mean it’s a big cast. There’s a lot of actors who are all doing other things. So it’s just a question of timing. And I’m positive that it will happen, you know, within the next two years or something."

And though Letty Raines is a complete 180 from Lady Mary, Dockery says she enjoys portraying a variety of strong female characters.

“I feel that I’m very much a part of this new wave of these fantastic female roles that have being written, that aren’t just strong, they are these multi-faceted women,” Dockery said. “They are strong, but they are also vulnerable. They are funny. They are smart. They are mothers. They are wives. They are everything. And I think that we’re seeing much more of that. That they’re not just labeled as these strong women. They are everything and incredibly honest.”

Watch the full interview with Michelle Dockery on ABC News' "Popcorn With Peter Travers" above.