In early 1995, the trio attended a showing of the Disney classic Bambi at the theater as Coldstone attacked Times Square. Xanatos, and Demona directed the battle from atop the Orpheum Theatre before Goliath was able to negotiate a different battleground. ("Reawakening")
Behind the Scenes
The name "Orpheum Theatre" doesn't show up in the series itself, but rather in the background memo for "Reawakening". Presumably, it was named for Orpheus, musician, poet and prophet in Greek mythology.