Map Trigger, I REALLY need help!!

Ok guys, on the map im creating now i got one problem,
heres what i want it to be:
First, you get a quest witch is to kill 3 ogres, when you've done that you shall return to the encampment (from where you got the quest) and then a final ending movie starts.
But my problem is that i got the trigger:
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Event:
A unit enters region 0004 <gen> (its the region to the final scene)
Condition:
(Unit-type of (Entering unit)) Equal to (Unit type of Krom0029 <gen> (krom is the hero thats supposed to enter the region)
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Ok, then its turn cinematic mode on and bla bla bla but i skip that part for now, the important thing is that this final scene starts everytime you enter the region, but i want not to start until you enter the region AFTER you've completed the quest.
Are there any trigger for this?

Thanks for answering as usual
~VB

Create a boolean variable that's default is false. After the ogres are dead set it to true. Add another condition saying 'Boolean Comparison - <YourBoolean> is equal to true'

Make the cinematic trigger innitally off by right clicking and selecting it. After that make a trigger like this

Event- <Special ogre> Dies

Action- Turn on <trigger for cinematic sequence>

ok, theres not a problem but i just wonder what boolean means... heh u see im swed :P

ok, theres not a problem but i just wonder what boolean means... heh u see im swed :P

ok, theres not a problem but i just wonder what boolean means... heh u see im swed :P

ok, theres not a problem but i just wonder what boolean means... heh u see im swed :P

ok, theres not a problem but i just wonder what boolean means... heh u see im swed :P

and now i wonder why the hell it came 5 times?!
I didn't even spam :(

Aye, ome more thing, how do you set the maps background music?

also check this thread out, and you might be able to answer some of my other questions ;)