Music and sound effects ideas for movie opening

After doing some research, we have found free, non copyrighted horror sound effects and music which we think will be appropriate for our movie opening. This video consists of a variety of different sound effects which include ones which would make the audience jump, there are also some very good tension building sound effects. They are very appropriate and match the genre of our movie. This is a very long piece of music, lasting almost 10 minutes. It is very dark, starting off slow then gradually getting higher and faster, raising the tension. It is the type of music that would excite and scare the audience as they would be waiting for the climax to happen.