Complex sentence: When he arrives intoxicated at a function at the Shrine Auditorium, his studio's publicist attempts to keep him away from reporters, and after an angry exchange, Norman rushes away and bursts onto a stage where an orchestra is performing.
Split into simpler sentences: When he arrives intoxicated at a function at the Shrine Auditorium, the studio publicist's attempts to keep him away from reporters. After an angry exchange, Norman rushes away and bursts onto a stage where an orchestra is performing.