Im pretty sure effie only said that in the movie
To think critically is basically the process self-regulatory judgment. Critical thinking is the process by which a reasoned consideration to evidence, context, methods, and criteria are included.
In the first sentence, the "he" is a nominative as it is a subject.
In the second sentence it is an object as the form "me" is actually "I", but "i" is a nominative form and "me" is an objective form.
In the third sentence "Us" is also used in objective form as "us" is an object of an action by "my sister".
Not if you do it at the last minute