Question

Error correction:
Mass Media and films in general are considered to have
an instrumental effect to shaping views and opinions
off the society. The media can be a wonderful
learn tool and means of communication.

Answer 1

Answer: Mass Media and films in general are considered to have an instrumental effect to shaping views and opinions *of* the society. The Media can be a wonderful *learning* tool and means of communication.

Note: The words between asterisks are the corrections.

Answer 2

Mass media *or* films in general are considered to have an instrumental effect *on* shaping the views and opinions *of* the society. The media can be a wonderful *learning* tool and means of communication.