Ashton Kutcher's marriage is said to be collapsing following reports that he cheated on wife Demi Moore with 23-year-old model Sara Leal. However the actor put on a brave face last night as he stepped out to support the Clinton Foundation at the Decade Of Difference Concert at the Hollywood Bowl. The 33-year-old That 70's Show star forced a smile as he posed with Jason Segal on the event's red carpet just hours after a source told The Mail On Sunday that he has begged his wife of six years for forgiveness. The 48-year-old actress has consulted a lawyer about...