It's unfair to call silent films "silent." When these films were all the rage in the 1910s and 1920s, one of the most important aspects of the experience was the live musical accompaniment that matched up specific mood pieces with the scenes.
Recently, a priceless cache of the music used for this type of accompaniment was discovered when staff at Birmingham's Central Library found a collection of over 500 pieces of music. The discovery has already led to discussion among film experts of attempting to restore the classic silent movie experience. Watch the video by BBC news below.