There are several categories of annoying people at the theater that Mrs. Six and I encounter enough that we have nicknames for them:
Disciples:  Have seen the movie before, and must quote the important parts along with the actors.
Echoers:  Must repeat any line that is funny or important, as doing so makes it even funnier and more important.
Sports fans:  Discuss the movie as if they were watching a sporting event at home in their living rooms.
Excedrins:  Feel the need to say something whenever suspense is the greatest to relieve the tension.
Macho Studs:  Boyfriends who have to entertain their dates at horror movies by goosing their dates during tense moments, then laughing uproariously.
Sammy Jankis:  Anyone who is constantly asking questions about things that just happened a few minutes ago.
Psychic Assistants:  People who ask their companions about things that haven’t been explained by the movie yet, as if their companion is psychic.
Psychics:  People who have seen the movie and say the important lines just before they occur in the movie.
Operators:  Anyone who takes a cell phone call during the movie.
Video Gamers:  Anyone who opens up their cell phone to play games or do whatever the hell they do with that million candle power video screen.
Olympians:  People who sprint down the stairs, shaking the entire balcony as they do so.  Usually preceeded by a video gaming session.
Babysitters:  People who bring a group of kids too young to a movie that they obviously cannot appreciate, sit still for, or be quiet during.
Nannies:  Anyone who brings a baby to any movie.
Samaratins:  People who’ve decided the movie is so bad that it is their responsibility to entertain the audience by mocking it.
Bigfoot:  A person who stomps the floor or kicks the seat in front of them.
My wife, when watching tv or a movie at home, cannot keep quiet.  She feels a burning need to ask questions about anything she didn’t completely understand when it happened.  On rare occasions, this is because English is her third language, but most of the time it’s something else.  Often, her question is answered as she’s turning to me to ask it.  Most of the rest of the time, the movie or show hasn’t provided an answer yet.  Sometimes the questions deal with some element of the movie that has little to do with what’s happening in the movie, but instead has something to do with some tangential issue.
We’ve discussed this several times.  I’ve tried to get her to understand that I really prefer to watch a movie all the way through without interruptions, as it’s easier to get into the movie that way, that most of her questions will be answered later on in the movie anyway, and I’d be happy to explain anything she didn’t understand after it’s over.
The problem is that she can’t seem to distinguish between comprehension problems that stem from her language skills and plot developments that simply haven’t been explained yet, so she asks away, twenty or thirty times for some movies.  I’ve tried giving quick one word answers, or saying “I don’t know” but she recognizes that I’m avoiding the question and repeats it.  So the only way to see a whole movie is to pause it to answer the questions, which disrupts the flow of the movie greatly, and sometimes leads to discussions that are off on some tangent only marginally related to the movie.  She simply must get a thorough understanding of whatever it is she doesn’t understand before she’s willing to go on.
For example, while watching Monster’s Ball, we had to frequently stop and discuss why men visit prostitutes, why women become prostitutes, how does a man find a prostitute, etc, none of which one needs to know to understand the movie.  One word answers such as, “He’s lonely” wouldn’t do, because not all lonely men go to prostitutes.  Therefore, we must discuss what makes some lonely men frequent prostitutes, but not others.
All of which would be fine for discussion following the movie.  This is, indeed, one of the great things about all good art; it stimulates discussion of the issues involved.  But she just cannot wait, she must know now.
None of which is meant to demean Mrs. Six; she’s a wonderful woman who happens to have a great deal of difficulty holding her questions until the end.
But when we step into a theater, she has no problem keeping quiet the entire movie because she had decided to be considerate of the other viewers.  It’s all just a matter of being aware of and considerate towards others