Complex sentence: Dr. Barnaby Fulton (Cary Grant), a very absent-minded research chemist for the Oxly chemical company, is trying to develop an elixir of youth, urged on by his commercially-minded boss Oliver Oxly (Charles Coburn).
Split into simpler sentences: Dr. Barnaby Fulton (Cary Grant), an absent-minded research chemist for the Oxly chemical company, is trying to develop an elixir of youth. He is urged on by his commercially-minded boss Oliver Oxly (Charles Coburn).