Did you know that (clause)

You use this when you have an interesting fact that you don't think the listeners know, and you want to share it with them.

they're (doing something)

In casual speech, you can use "they're ___ing" when you don't know or don't care who's doing the action. Another example:

Look at that (pointing to a sign) - they raised the price of gas again!

In formal situations, when you want to express what an unknown person or group has done, use this structure:

Did you know that a new Ghostbusters movie is being made with the original cast?

a sequel

A "sequel" is a movie or book that continues a previous one. The sequel usually uses the same characters as the original. The sequel will often be given a number, like "Shrek 2" or "The Godfather, Part 2"

the original (something)

The "original" of something is the first version of something. For example, the original members of a band are the people who were in the band when it started. The "original flavor" of a food product is the first flavor that was made. And so on.

the cast (of a movie)

The "cast" of a movie, TV show, or a play are the actors.

The difference between "actors" and "cast" is that there are many actors in a movie, but only one cast. "Cast" refers to the entire group together.

People often use "cast" along with the word "crew", which means the people like who work on the film or play who are not actors. Sound crew, lighting crew, stage hands, and assistant directors are part of the "crew".

they

People often use "they" to mean the people who are responsible for something. For example:

They should clean up the sidewalks here.

In this example, you don't know or care who exactly is supposed to do this; you just think that the people or department which takes care of the sidewalks should do it.

"They" can mean:

• the government
• the police
• the people who manage a building
• the people who run large companies

In other cases, when you use the word "they", you have to explain who you're talking about first. Imagine that someone says:

They came to the beach house.

If you didn't know who the speaker was talking about, you would ask:

Who did?

But when "they" means "the people in charge", you don't need to explain who you mean.