I Movie is not showing .mov files after it claims to have imported them
I have some .mov files I downloaded. I want to put them in my movie. THe first three files worked fine but suddenly after that, every time I try it import the file, it looks like it is importing, creating thumbnails, etc but then the footage is NOT showing up and I cannot use it. I can view it using Quicktime just fine. But I cannot use it to make my movie. It worked for three files - I have no idea why it is not working for these. I restarted the computer, no luck.