A "professional" display of a video? How do I control the video display?

My goal is to display a quicktime video I have created using my MacBook Pro on a video projection system at a party.
The video is about complete. What I want to do is either have a still frame showing on the projector, and the right time, just show the video, or have a black screen until I show the video. At the completion of the video I want the screen to go back to black. At no time do I want to show on the projector the desktop or any of the quicktime controls.
What can I do from the laptop side that would allow me to bring up the video and freeze it at a title screen and then start it without any keyboard activity being shown on the screen?
Though, without doubt, I am an amateur at this, I would like the presentation to be as "professional" as possible, given what I have to work with.
All help and ideas are greatly appreciated....
Paul

Your best bet is to use the "blank screen" feature on the projector. Almost all projectors have this feature. You can then turn on and blank the projector screen, get the video running on your mac and then unblank it when you are ready. When the video is over, blank the projector at the end of the video and then worry about closing the video on the mac.
If for some reason the projector does not have this feature, or it is not convenient (for example, you can't find the remote to the projector and don't want to walk up to it, or it is on the ceiling) then your best bet is to edit your video so there is a few seconds of "black screen" at both the start and end of the video. Then get your video started full screen, pause it before it starts THEN turn on the projector (that will only be displaying the still blank frame and then you can start the video when you are ready. When the video is over, stand by and be alert so you can pause it when it hits the blank screen at the end of the video. You can then power off the projector.
Hopefully you will find one or both of those solutions helpful.
Whatever you do, MAKE SURE to TEST it out before hand! There is nothing more un-professional then when I see people bring in laptops that they have never used with an external display before and have no clue how to get the video out enabled. (with mac's its automatic, but with PC's sometimes you have to push a funny keyboard combo like FN + F8 to get it to work) The audience then gets to stairs at the "NO INPUT" screen of the projector as you scramble around tying to get it to work. lol.

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