Back in 1997, Nicolas Cage spent $150,000 for a copy of the June, 1938 issue of Action Comics #1, containing the first appearance of Superman. That same issue was stolen from him in 2000 before mysteriously turning up in a San Fernando Valley storage locker in April. The comic was taken as evidence by the police and since then the actual owner of the artifact has been shrouded in mystery.

via Superman Debut Comic Stolen From Nic Cage Sells For a Record $2.16 Million.