Can't find location of captured video
I am trying to find where iMovie stores captured video on the hard drive through finder? I am in the process of importing video from a miniDV camcorder and I captured several videos before iMovies crashed. The iMovie event that I captured the videos to are now empty of all the captured clips but the disk utility shows the hard drive is almost full so I know the files are somewhere. Ideally I can restore the iMovies events so that I export the video to mp4. If nothing else, I need to find them so I can delete them to free up space to reimport and continue on.
Any help would be appreciated. Thanks
MacBook Pro 13”, macOS 10.15