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"I didn't leave that movie; I was fired," Julianne reveals with a sad smile on "Watch What Happens Live with Andy Cohen."

Getting fired stings, but getting fired and watching your replacement go on to kick ass is just plain brutal.

Unfortunately, that's what happened to Julianne Moore and the 2018 crime drama, "Can You Ever Forgive Me?" -- for which Melissa McCarthy went on to receive an Oscar nomination.

Julianne stopped by "Watch What Happens Live with Andy Cohen" Thursday night, where a caller asked the actress why she left the film she had originally been cast to star in alongside Richard E. Grant.

"I didn't leave that movie; I was fired," Julianne revealed with a sad smile.

"Were you?!" Andy asked.

"Yeah, yeah. Nicole fired me," she replied. (Nicole Holofcener wrote the screenplay.) "I think she didn't like what I was doing. We hadn't shot anything yet; we'd just been kind of rehearsing and doing pre-production and stuff, and I think that her idea of where the character was was different than where my idea of the character was, so she fired me."

When Andy asked Julianne -- an Oscar winner herself, by the way -- if she had seen the movie, she said she hadn't yet "because it's still kind of painful."

"But I love Melissa McCarthy," she added. "I worship her. I think she's fantastic, so I'm sure she's great."

Andy's other guest, iconic fashion designer Diane von Furstenberg, unknowingly made things worse when she said, "That must feel so rejected to be fired."

"It's pretty bad," Julianne replied, adding that the only other time she had ever been fired was when she was 15 and working at a frozen yogurt stand.

The interview got lighter and happier for the actress when a different caller asked her if she had reconnected with her "Crazy, Stupid Love" co-star Marisa Tomei since the latter found out they were cousins on the PBS genealogy show, "Finding Your Roots," earlier this year.

Julianne nearly jumped out of her seat. "Okay so, I've known Marissa since she was 19 and loved her and we've been friends and seen each other back and forth," she said excitedly. "I found out actually before it was revealed on the show because a friend of mine was editing the show and said, 'Oh, my God -- Marisa Tomei is your cousin!' So I texted her and I was like, 'Oh, my God!!!'"

The actress said the best part about being cousins with Marisa is that she can "tell everybody" they're related.

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