Lost My iMovie Project and all Clips when Downloading

I just worked on editing a project for 2 days. I know that iMovie automatically saves projects and returned to it many times to keep working on it. When I finally completed it, I set up to download it. I had not closed down other windows and it was moving really slowly and then the screen seemed to freeze, even though I could hear it working. I stepped away and came back to a black screen like it had gone to sleep. I tried to escape and get to the main screen but could not so I rebooted it. When it restarted I lost the ENTIRE project. No movie in my project, no clips, nothing that I was working on. After searching my desktop I found a MP4 with the title and I thought I was in luck. However, it is only the first few minutes. Is it possible that I've lost everything I worked on for the past 2 days or could the raw version and the clips be somewhere on my computer ( I checked the trash on my desktop and nothing in there.)