Sometimes the crew cannot get around the creation of a new set, or traveling to a remote location to film scenes for an episode. For instance, the Luthor mansion set was expanded this season. The production crew first began by expanding the second level in Lex's office, and then exposed the staircase leading up to the second level – it had originally been hidden by a wall. They also added a skylight and inserted lights in the background, giving the room a larger appearance. For scenes in "Legacy" that involved Dr. Swann, the crew traveled with Christopher Reeve to the New York Public Library to film, which was easier for him to journey to. Reeve's schedule forced the production crew to shoot his scenes a month before the script for the episode was finalized. In season two, the crew was able to use the set of NBC's "Third Watch", courtesy of John Wells, to film Reeve's scenes. The opening segment for "Truth" where Chloe questions a former co-worker of her father's about why her father was blacklisted by Lionel Luthor, had to be filmed over two nights; the crew ran out of time the first night because of the weather, so they filmed Mack's scenes in front of the studio.