Final answer:
The service failure is caused by disruptive behavior of a group of teenagers in the theater, making it hard for the Ramirez family to enjoy the movie.
Step-by-step explanation:
The service failure caused in this case is a result of disruptive behavior by a group of teenagers in the theater. The teenagers are talking and laughing loudly, which distracts the other audience members and makes it hard for them to focus on the movie. Additionally, the teenagers are using their phones, which illuminates the room and further disrupts the movie experience. This service failure impacts the Ramirez family and other audience members who intended to enjoy the movie in a peaceful and uninterrupted manner.