Complex sentence: In 1982, the bridge was used in the filming of the move "Annie", it was left in its open, or raised position, during this filming, though the structure itself was painted black, and the rails were painted silver.
Split into simpler sentences: In 1982, the bridge was used in the filming of the move "Annie". It was left in its open, or raised position during the filming, though the structure itself was painted black, and the rails were painted silver.