First of all, how did you do the scripting? Did you do it by putting the commands in the "on Activation" of triggers or by putting it into a file and calling up the file as a script during the mission?
If it's the second one I can't really help, but if it's the first one...
In the init line of your character put in the titleCut instead of in a trigger. The init line is instant while a trigger takes a moment to activate. Always works for me.
Hope it helped! ;D
By the way, this will probably get moved to Sound and Cutscenes.
*EDIT* Forgot to mention. I might be able to help with the second one. Instead of putting (for example)
This exec "intro.sqs" into a trigger, put it in a unit's init line. If you already did, then sorry, can't help ya. I know poo about cam scripting with sqs files.
(heck, I know poo about cam scripting in general!)