Our family loves IMAX Victoria! We have annual passes that encourage us to visit IMAX more often than regular movie theatres. I like the 45-minute shows for my children - just the right length for short attention spans ;-) Plus, the visuals are amazing with the new laser system they recently installed. Note that it can get quite loud due to the impressive sound system.
I love the IMAX! Cheaper than a movie, and amazing cinematography. Last year I had the annual pass which I very highly recommend if you are a local. It pays for itself very quickly. And if you're ever feeling a tight budget then it's great to be able to get out and see a movie at anytime. Also free popcorn upgrades. If you haven't been to the IMAX yet, my advice is to sit near the back!