At the beginning of season seven, because of recent changes in the cast, the intro credits have changed. The scene on the lake where Jennifer Morrison's name was credited is gone, as is the scene of House walking with his first team.
Having a new intro, actors Peter Jacobson and Olivia Wilde appear in the opening title sequence. Additionally, it is the first episode that Jennifer Morrison is not credited aside from the season 6 premiere, Broken (2009), and finale, Help Me (2010).
House attempts to open a bottle with a US Marine Officer's sword, a Mameluke, presumably an heirloom of his father, a US Marine Aviator.