OK Nick
With your video in the timeline. Go to the media room (clapper board) you will see a button saying "all content" click on this button and select "colour boards". When you see a black colour board, drag it down and place it to the left of your movie.
Then put your title in the title track, exactly under the blackboard. Then click on the colour board that you have just inserted and go to "duration" just above the timeline. Make the duration the same as your title duration.
The result will be BLACK SCREEN WITH TITLE - VIDEO
I hope this helps
Robert