Hey, so I'm doing this project for my English class where I want to show how people "go through the motions in life" without actually being conscious of their actions (it's complicated - won't get into it). Anyways, I was thinking of a setup where I'm sitting down on a chair, still, while saying my thoughts in one video. The second video is set up from the same perspective, but I'm not sitting there, and it just becomes a sped up video of people walking by. Ultimately, I want to have one video where I'm sitting there talking while there's sped up people in the background. How can I accomplish this? I'm on Mountain Lion by the way, so my options are probably limited (however - I do have Wine if needed). Thanks!