Using audio from movies in a podcast?

[skttrbrn]

What is the name of your state (only U.S. law)? Everywhere

Hey everyone, i have a quick question about using audio in podcasts. By that I mean am I able to use a movie trailer (the audio) in a podcast? Am I able to use a little snippet of audio from the movie itself?

I have heard there's a 30 second rule, that if you use less than 30 seconds from the one source its ok?. I know of dozens and dozens of songs that use dialogue and audio snippets from movies, and a lot of the bands are pretty big.

And does this "30 second rule" apply to music in general? Can I use a snippet of audio at the beginning of my podcast if its less than 30 seconds?

Further notes:

* The podcasts are movie reviews
* Everything is non-profit
* All the appropriate credit is given to the original source (artist, movie, song, etc.)

I guess the question is, does this fall under fair use? I admit, I don't really understand fair use at all...

Thanks in advance.

[The Occultist]

What country are you in?

[skttrbrn]

I'm in Australia

[FlyingRon]

US law only.

No 30 second rule in the US either (and I'm fairly sure there isn't one in Australia either).