While I have never done an internship at Disney (though I've known two people who have) we do take on interns at our facility. Usually, the problems don't come from the job itself, but rather the interns' expectations. It's been many years since my college days but things haven't changed that much... One friend, Natalie, who went to Disney as a recreation major found herself weeding gardens her first few weeks. Simply put, she sucked it up and did her best -- putting in the time it required to make it perfect. Another girl she was paired with (a communications major) basically did the job, but didn't like it and it showed. You can guess which one was offered a job at the completion of their internship. I haven't talked with Natalie in quite a while, but I hear she's doing well with the Mouse (and she's not weeding gardens)...
Since you're all in college, you all know the basic facts of life -- First, Work is WORK, and fun is FUN (and if you get to combine the two, you're very lucky). Secondly, internships are more than just another form of semi-slave labor. They are a long-term test which is cruely designed to bring out the best and worst in people. They're like a military boot camp with less yelling, and fewer five mile runs at 04:30 (and hopefully are also devoid of the firearms). The point is, they are designed to seperate those people who can "get the job done with a smile on their face no matter the obsticles" versus those who are looking to "maybe learn something and just have a good time." Sure, even the "good timers" will have a story to tell, but they won't have a chance at a career.
The point being, if you're a communications major, chances are you probably won't be working on the next DTV video or other program. The problems aren't with the internship, they're with the expectations. Remember, this is a test -- will you do what it takes to be noticed (in a good way) or will you pout and exclaim "That's not what I'm supposed to be doing?" If you're the person doing the hiring, which person would you select -- Mr/Ms "Pitch in and get it done" or Mr/Ms "It's not my job"? The choice is easy, and the choice is yours.