Identify the hidden meaning behind this picture?

Decode the movie name from the below picture?

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

What has one eye, but can’t see?

What number should come in place of the question mark below?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)