Inside real estate portfolios built by Hollywood’s top Batman stars

Key points

• Actors who played Batman have built large property portfolios with their film earnings. George Clooney and his wife Amal own a portfolio worth about $US100 million, including Villa Oleander on Italy's Lake Como.
• Ben Affleck's property holdings grew after a $US400 million tech sale to Netflix. Christian Bale invested his Dark Knight trilogy earnings in Los Angeles real estate.
• Val Kilmer was forced to sell his New Mexico ranch at roughly half its asking price.