So, I have to tell you that you haven't quite given us enough specifics to really help you.
What aspect of film/video are you talking about? production? editing? history and criticism...?
If you want tutorials, for what program or system? FCP?
Here's a good selection of tutorials for programs through
Atomic Learning. Just click through and explore. There are a lot of other FCP books and CDRoms that you can check out, but online, it's a bit difficult because most tutorials require some specific media.
You might want to check out the forums at
Digital Media Planet for some tips and discussions.
I'm going to assume you're interested in
editing theory and practice, because it is the primary stage of filmmaking that Macs play any significant part in.
So, there are a few different schools of thought on Editing. You'll find that the most theoretical discussions will, historically at least, break down into Montage and Continuity theory. Read some Eisenstein for Montage [he wrote the book, after all] and I found
Dmytryk's book "On Film Editing" to be particularly helpful for H'wook continuity editing. But Murch also has great material.
I did find
this book on Google Books. Haven't read it. It looks long, and somewhat useful, though dated.
So there's a couple places to start. If you're more interested in practices of film production or compisiting and animation, let us know.