Re: X-MEN: Days Of Future Past (Casting, Rumors, Pics till release)
Yeah, Sir Ian's comments particularly about not seeing a script yet, would indicate to me that he resigned because Singer was back in the director's chair. Of course this is just personal speculation on my part, but I wouldn't be surprise if that was the case. Probably the same with Sir Patrick as well.
Probably that mixed with having fun in the role and having fun being with Patrick Stewart.
Ian McKellen just seems to like having fun while acting.
When on Romulus, Do as the Romulans