With a champion boxer, dead lap dog and alleged FBI misconduct, Seth Ersoff should pitch his story to a studio if it doesn’t fly in L.A. Superior Court.

After wallowing in a slush pile of court delays for several years, a suit by Ersoff, a Los Angeles talent manager, is suddenly a hot property for reporters because it exposes a bit of Hollywood’s considerable underbelly — the much-publicized case of celebrity private eye Anthony Pellicano. The detective, who’s currently under indictment on federal wiretapping charges, doesn’t factor directly into Ersoff’s case — although Ersoff said last week that the lawyer opposing him in litigation did threaten to sic Pellicano on him.