How do I empty trash in iMovie 11

Thanks everyone for answering, but hasn't quite got to the root of my problem.

Yes, I can see how that works with clips in an event: I reject them so they are in iMovie's trash, then when I view rejected and "move to trash", they go into the actual computer's trash.

But this doesn't seem to work with stills deleted from a project, which is where I'm trying to do it.

If I delete a still clip from the project, and then go to show rejected and there is nothing there.

Howver The still clip is visible in my project if I go into the finder, so I can delete it from there, but this seems to be a bit of a palaver, I would think I should be able to do this in iMovie.

Jim2006 wrote:
Pete - You just delete the still in the project, everything related to rejected is for video.

Thanks, but in this case I don't want to delete the project, just some stills from the project.

So far the only way I've found to do that is from the finder "show package contents". I thoght I should be able to do it from within iMovie.