How many F-bombs can you drop in a PG-13 movie? Is it one? Two? However many, last night's They Might Be Giants show certainly earned its 14-and-over "rating," with the "Johns," Flansburgh and Linnell, peppering their set with colorful language. Those only familiar with They Might Be Giants as a whip-smart children's outfit might have found the swearing a little out of place, but TMBG's were in full rock 'n' roll mode at the Marquee. Read the full TMBG review. PHOTOS BY MARIA VASSETT.