On July 18th, British distributors Optimum Home Entertainment will release a Triple Play Edition of Jaume Collet-Serra's high-octaine action drama Unknown (2011), starring Liam Neeson (Seraphim Falls, Chloe), Diane Kruger (National Treasure, Inglourious Basterds), Bruno Ganz (Wings of Desire, Downfall), and Aidan Quinn (Benny & Joon, Legends of the Fall).