Rosamund Pike, Dave Grohl, Seth Green, Jack Black and a slew of others celebrate the premiere of The World's End; Shenae Grimes and Adrienne Maloof join host Brooke Burke-Charvet at the BOBS from Skechers Summer Soiree; Jay Leno hosts the unveiling of luxury motorcycle maker Brough Superior's newest models at the Peterson Automotive Museum; Laurence Fishburne, Andrew Keegan, Judi Shekoni and more attend the opening reception of Billy Zane's solo art exhibition, "Seize The Day Bed" in West Hollywood—get the full scoop on L.A.'s star-studded Wednesday events in today's Last Night's Parties.