The producers decided to start the episode inside The Swan because they considered the audience would expect to pick up from Locke and Jack looking into the hatch shaft, so the opening instead is filmed in a place that does not reveal its location or period - director Jack Bender stated it made him remember a San Francisco apartment - until the explosion of the hatch. For the flashbacks, Bender decided to avoid making the hospital scenes similar to ER, filming mostly with handheld cameras to give a "spontaneous feel" to the scene. Sarah's operation was filmed in an actual surgery room in Oahu,[1] while Aloha Stadium in Honolulu is used for Jack and Desmond's tour de stade.[3]