Countdown to the release of X-Men: Days of Future Past (2014), with the iPhone Movie Countdown Clock App.
The British actor, who plays a young Charles Xavier, has just finished filming, and says "There's an army of brilliant actors in that film. Bryan Singer is back at the helm. Potentially it's going to be the biggest, most epic X-Men they've ever had. I think it's the second biggest production Fox have ever embarked upon, behind Avatar. So they're definitely going for it."
While relishing working with Patrick Stewart and Hugh Jackman, he revealed he did have a nickname for the latter. "His last day was my first day and that was it. Then we were done. But we did crossover and we do get a scene together. Getting to work with Hugh - who I christened Hugo Boss - was great. What he's like on camera when he's getting interviewed and you think he's the nicest man in show business - he is. He's amazing. The guy's got grace coming out of every single pore. If we could all be a bit more like Hugh it would be a very happy planet."
And when asked about Bryan Singer's role, the Trance star had nothing but praise for the producer. "Bryan's very protective of the series. He did create it. He did help form that environment that allowed subsequent superhero movies to exist and thrive like they have done for the last however many years."
"Not to say that there weren't other superhero movies out at the time, but of that ilk, where it was OK to take it really seriously. He does take it really seriously. There's a kind or reverence about it, which I like. You want people to take it seriously. That's what he brings to it I think. And a safe pair of hands - you know you're in good hands."
X-Men: Days of Future Past hits the big screen next summer, while McAvoy's latest movie, Filth, is in UK cinemas this weekend.