tie in to

In the lesson Monsters University 

Mason:  So, yeah, they made this movie for you. It is tying in to that nostalgia of “Hey, remember this thing that you like so much? Let’s go hang out with them more.” 

Could you please explain what tie in to means?

I looked up the word “tie” in a dictionary and found the phrase “tie in”, but it says this is often used with “with”. The English teacher sometimes gives compositions that tie in with things we are studying in other classes. Is it still idiomatic to use it with “to” in the same sentence? 

Thank you :)