Hi! Thanks for your responses. What I'm really trying to do is import video with the intention of turning every few seconds of it into a photo. Right now I'm just importing it in real-time into iMovie, taking the .mov file created by bringing it into iMovie, and then exporting from the Quicktime file as an image sequence.

Are there any programs that allow you to import footage and it automatically just creates photos out of the footage at set intervals? Maybe with a program like that it's possible to to a high-speed import?