A Hollywood auction featuring Michael Keaton's Batman costume and dinosaurs from the Jurassic Park franchise has proved a huge success - raising a staggering $4.1 million (GBP2.05 million). The 31st Profiles In History auction's top seller was a rare King Kong six-foot film poster, one of only three known to exist, which sold for $345,000 (GBP172,500) - over $100,000 (GBP50,000) more than the reserve price. Other hits at the event included the Batman costume worn by Keaton in Batman Returns, which was snapped up by a superhero fan for $103,500 (GBP51,750), with Charles Middleton's Ming The Merciless cape from 1936 movie classic Flash Gordon selling for $115,000 (GBP57,500). And movie monsters were another hit of the day, with one collector paying $126,500 (GBP63,250) for a leaping Alien Warrior figure from Aliens, and a Velociraptor from The Lost World: Jurassic Park II was sold under the hammer for $115,000 (GBP57,500). The auction took place on 27 and 28 March (08) in Los Angeles.