XMenFilms.net has sent us this possible update on the filming for X-Men 3:
Sources say that X-Men 3 will start principal photography at Hatley Castle (Royal Roads University) in Victoria, Canada at the end of this month!
The building will serve as Xavier’s School for The Gifted. Though the shoot is expected to start in last week of July, it’s believed that some photography (2nd-Unit) could possibly start before that. This a reunion of sorts for cast and crew because the was location was also used for X2.
Filming there is expected to last for approximately 3 weeks. The cast and crew will then move on to Vancouver Film Studios. As we speak, the writers Simon Kinberg and Zak Penn (Who are at this years Comic-Con) are working around the clock on the script.