Is Secret of the Tomb the Best Night at the Museum Movie Yet?

As the night security guard at the British Museum, Rebel Wilson's Tilly brings her own brand of zany, off-the-wall humor to Night at the Museum. "I obviously love, love doing movies where I get to show that bit of girl power, you know," Wilson told us. She also shared that she scored herself a souvenir once filming wrapped up. That hat she's wearing with her security uniform? She bought it from the costume department — for $650.