Complex sentence: Philo Vance's entry does not make it into the final of the Long Island Kennel Club's dog show, disappointing fellow competitor Archer Coe (Robert Barrat), who had hoped to savor a victory over Vance.
Split into simpler sentences: Philo Vance's dog does not make it into the final of the Long Island Kennel Club's dog show. Fellow competitor Archer Coe (Robert Barrat) is disappointed, having hoped to savor a victory over Vance.