Java - Going Through Value In Multiple ArrayList (Nested For Loop)

I just started playing around with Java for awhile, but got caught up in a problem when using ArrayList.

CinemaAppMain
public class CinemaAppMain {
public static void main(String[] args) {
new CinemaApp().start();

[Code]....

I am trying to get the movie name and theatre title from their ArrayList, and I know I need to go through the movie list & theatre list to find their name & title, and compare it with the user input and print out the result.

I use for(int i=0;i<movies.size();i++) to go through the the movie list, and I tried using for(int i=0;i<theatres.size();i++) to go through the theatre list. But when I printing multiple time with different user input value, it will show me strange result (screening have same movie name & theatre name, the else if statement is printed below the user input, user input is printed more than once after the first time).

Edit: I know its wrong for me to use nested for loop,if not, another solution is needed to get the item inside both of the list. (getting the "title" from movie list & "name" from theatre list)