Doctor Who: 20 Things You Didn't Know About The Ninth Doctor
4. Eccleston Thinks The Day Of The Doctor Is "Immaculate"
On the subject of The Day Of The Doctor, while Eccleston wasn't involved in the episode, he doesn't have any hard feelings or resentment towards the people that made it. In fact, he thinks the story was actually improved by his absence.
Speaking at New York Comic-Con in 2019, Eccleston shared his thoughts about the script for the 50th anniversary special, mentioning that he thought it was "immaculate", and that the War Doctor was a fantastic idea:
"I just thought that script was immaculate, and I think it added to the canon of Doctor Who in a way that me coming back wouldn’t [have]. I think the War Doctor was a brilliant working of Steven Moffat’s imagination, and I loved watching [John Hurt] do that."
It's nice to see that Eccleston was still really supportive of the show after he left, especially considering that he didn't have the best time making it.
Hell, he apparently still kept watching it, with Moffat once noting that Eccleston "chatted away" about Amy Pond during a meeting they had together.