The stat was due to go on to talk about his starring role in Danny Boyle's film but then declined due to Morgan's tweet: "I'm planning a men's march to protest at the creeping global emasculation of my gender by rabid feminists. Who's with me?"

In response, McGregor tweeted this morning: "Was going on Good Morning Britain, didn't realise Piers Morgan was host. Won't go on with him after his comments about women's march."

Morgan's reply was: "Sorry to hear that. You should be big enough to allow people different political opinions. You're just an actor after all", following it later with the tweet: "A real man would have come on and debated it with me, not run away like a coward."

Morgan also said on-screen on the ITV show: "Sorry that's unprofessional. But you turn up. We are allowed to have different opinions in the world. Do we all just have to agree? Am I not allowed to express any dissent?

"What has (it) come to when actors are telling the world how they should think?"

Co-host Susanna Reid also agreed with the sentiment, writing on her Twitter page that it's "such a shame" that McGregor declined to appear on the show and that she would have "liked to see that debate on air".

I'm planning a 'Men's March' to protest at the creeping global emasculation of my gender by rabid feminists. Who's with me?

— Piers Morgan (@piersmorgan) January 21, 2017

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

— Ewan McGregor (@mcgregor_ewan) January 24, 2017

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

A real man would have come on and debated it with me, not run away like a coward. https://t.co/z5HmkFASwM

— Piers Morgan (@piersmorgan) January 24, 2017