I would assume that there are maybe 20 area managers in each state. Probably about 100 nation-wide. Do you really think that $20 million would go towards just those guys, when your parent company only took in about $45 mil in profit last year from all the cinemas they own.
Furthermore, the company's highest-paid non-executive Director earns less than $200,000 you fool (197,000)! Why would an area manager get more than a director??? It's also extremely unlikely that those trainee login details give you access to everyone's salaries. Salaries are kept private in companies: if they were widely known to everyone including management trainees, then there'd be bitch fights over salaries, and HR would have too many conflicts.