be aware that according to the department of labor, unless you are an exempt employee and most cast managers are not, you should be getting time and a half for anything worked over 40 hours.
also check your state laws, some states are very employee friendly like california. they go even farther in regulating overtime breaks, and lunch.
you should be tracking every hour and submitting it.
there are exemptions for hospital employee and nursing homes, but I know hospice IS required to pay overtime.
there are conditions that must be met to be called an exempt employee, sometimes they call you exempt but it is incorrect and when called on it, they must pay.
there are also particular laws for on call workers and what can be considered work time.
protect yourself, read the laws.