There are lot of responsibilities that an intern must do in a film production company. The basics will be documentation, updating the calendars as scheduling is an important aspect of this industry. The other tasks can be like scheduling meetings, findingvendors, assisting the experienced people etc.
Getting frustrated and showing anger or boredom at work. Unable to do the task in hand in a proper way, not following the rules of the organisation are some of the common mistake an intern can make.
Major film studio can have lots of people from various streams working together.An intern can learn time and material management,documentation, scheduling and other aspects of the industry.