Complex sentence: Solomon started his career with United Artists, loading films on trucks at age 18, to selling films to Central America from Panama and later from Columbia and Peru, becoming vice president for MCA/Universal at age 30 with all international responsibilities.
Split into simpler sentences: Solomon started his career with United Artists, loading films on trucks at age 18. He sold films to Central America from Panama and later from Columbia and Peru, becoming vice president for MCA/Universal at age 30 with all international responsibilities.