Mary Jane Watson in Manhattan Memories, a Broadway revue mixing songs of yesteryear (Cole Porter particularly) with a connecting plot.
These are a mix of set photos and promo shots - Peter waiting outside the theater, and then MJ performing on stage:
30 Days until Spider-Man 3!!
ETA: I just found the YouTube link of the Spider-Man 3 TV spot that ran during the Nickelodeon Kids Choice Awards. New stuff! Dorky lines!