Wing Commander CIC

Hi. I'm having a problem with the beginning movie section. In the bar when you have 2 choices to proceed(Help him out or straighten him out), I get this error message when I click on either of them:
Missing Movie -- E:\vob\sc_0010b.vob

It doesn't show anything and the only thing to do is ECS out making me miss the rest of that scene.

Any ideas?

Please Thankyou Please