Complex sentence: Bogart resumed his friendship with boyhood pal Bill Brady, Jr., whose father had show business connections, and eventually Bogart got an office job working for William A. Brady Sr. 's new company, World Films.
Split into simpler sentences: Bogart resumed his friendship with boyhood pal Bill Brady, Jr., whose father had show business connections. Eventually Bogart got an office job working for William A. Brady Sr. 's new company, World Films.