iMovie '09 HELP

[traycraycray]

Hello all!

So I am trying to edit a movie on iMovie '09 and it was working perfectly fine but then I go to import a clip and then when I pressed play to preview the clip to make a selection, it wouldn't play on the screen on the right hand. At this time, the other clip selections I had made already was still playing..

I restarted iMovie and tried doing it again but now my whole project won't play. The frames are still there but when I press play nothing plays.

Can someone help me?? Thanks!