Following Piers Morgan's critical comments about the historic Women's Marches over the weekend, Ewan McGregor refused to go on his morning talk show. Now Morgan is bringing the debate to McGregor.

"Was going on Good Morning Britain, didn't realise @piersmorgan was host," McGregor tweeted Tuesday. "Won't go on with him after his comments about #WomensMarch."

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Minutes later, Morgan offered a retort, writing, "Sorry to hear that @mcgregor_ewan -- you should be big enough to allow people different political opinions. You're just an actor after all."

Sorry to hear that @mcgregor_ewan - you should be big enough to allow people different political opinions. You're just an actor after all. — Piers Morgan (@piersmorgan) January 24, 2017

Morgan's controversial statements were published in an essay for the Daily Mail. In the essay, Morgan goes after Madonna for her expletive-laden speech in which she declared, "Yes, I have thought an awful lot about blowing up the White House, but I know that this won't change anything."

"How does threatening to assassinate Donald Trump, and all his White House staff for that matter, play into the narrative of 'End the hate!' or 'Love Trumps hate!' It doesn't," Morgan wrote. "This March turned from a defense of Women's Rights into a celebration of Women's Wrongs - a procession of high-profile female celebrities just spewing bile."

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Morgan later targeted McGregor's integrity, calling him "unprofessional" for canceling his scheduled appearance and a "pedophile-loving hypocrite" for working with director Roman Polanski in The Ghost Writer.

"Polanski pleaded guilty to the statutory rape of a 13-year-old girl, then fled America to escape a lengthy prison sentence," Morgan wrote, referencing Polanski's 1977 arrest for the alleged sexual assault of Samantha Gailey. "'He's a legendary filmmaker, one of the best,' gushed McGregor in a 2010 interview about the pedophile, for whom Meryl Streep once gave a standing ovation at the Oscars. A new warrant was issued for Polanski's arrest during the movie's post-production stage. McGregor, who has four young daughters, was asked about it and said: 'I felt sad for Roman because he's an old man who I'm incredibly fond of. I like him as a man.'"

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Morgan's co-host, Susanna Reid, who often shares drastically different opinions from the 51-year-old TV host, addressed McGregor with a different take, tweeting, "Such a shame. Challenge views where there's a difference. Would have liked to see that debate on air - it's an important one. #WomensMarch."