Complex sentence: Cubby almost immediately included Dana Broccoli's college aged son Michael G. Wilson in even the early films doing various production jobs and his engineering education was put to good use occasionally in some of the series' special effects.
Split into simpler sentences: Cubby almost immediately included Dana Broccoli's college-aged son Michael G. Wilson in the early films, doing various production jobs. His engineering education was put to use in some of the series' special effects.