iMovie captures it's files as .rcproject. However, you should be able to capture the individual clips themselves by going to the iMovie Events folder and finding them there in .dv format. What I do is simply open the folder and then drag the clip(s)…
I think if you control click on the imovie project you can open the folders inside and look for the media folder. I haven't done it in a while but I think that's the process.
I captured some footage in iMovie on a friends computer the other day and then copied the project onto an External Hard Drive that I am copying that onto my main work computer to edit the clips that I captured in Final Cut Pro. I don't use iMovie. …
There is a great video at Digital Juice about this. It is a Suite Effects episode by Sean Mullen, who is a VFX artist who has done work on major TV shows and commercials from Disney to Sci Fi type shows. He does it in After Effects, but I think you…