I just recently got back from a trip to Canada. These are the things I have learned:(posted 8309 days ago)Don't put film in your checked luggage. X-Ray for checked luggage is much stronger than carry-on.
Don't put film in lead bags. If the X-Ray machine can't penetrate it initially, they crank up the dosage until they can. I am also told that anything slower than ISO 1600 is safe to be put through. Be careful of multiple exposures to X-Rays, they are apparently culmulative.
Ask for film to be hand checked. I believe in the US, they have to comply. Outside the US, you are subject to local customs. The best method I have found so far is to take 35mm film out of the plastic canisters and put them all in a large ziplock baggie. They are safe from dirt, dust and grime and security can see everything at once. Being that they can fish around the bag without opening it, you can get though faster. If you bring your film in plastic canisters, expect them to go through each and every can.
Be prepared to get searched. Arrive with plenty of time for a thorough search routine. Make sure everything can be powered on and checked. Palm pilots, cameras, cell phones, portable CD players included. If it is electronic and can't be powered on to prove it is what it is, it won't go. Expect lenses to be scrutinized (remove end caps so they can see through them), filters, film, etc.
As far as equipment restrictions, I brought a fair amount of gear in my hiking backpack and didn't have a problem.
Hope this helps!