After completing the online application, I received an email the next day asking me to call someone at the store to schedule a phone interview. I called the number and scheduled my interview for the following week. Then, a few days later, I received another phone call from the same person asking me to schedule an interview. I guess the HR person got confused, which happens.
Nobody called me at my scheduled interview time, so I called the interviewer myself 15 minutes later, knowing there had been some confusion. She was apologetic and understanding, and was able to do the interview with me on the phone then.
The phone interview was ~45 minutes long, but it covered my work history for the last 10 years, so it might be considerably shorter, depending on your personal work history.
The interview began with reiterating hiring questions that had been filled out on the application -- age, ability to work in the U.S., etc. The interviewer then asked about my interest in the company and the specific job and what skills I brought to the table and what hours and days I could work. We then talked about each of the jobs I had over the last 10 years, the dates I worked, the job description, what I liked most and least. She then had me run through a few behavioral questions having to do mainly with how I relate to coworkers or customers and what I would do in situations where there was a decision I disagreed with or dealing with an angry customer. The interview concluded with some discussion about legal matters, any other qualifications I had that I wanted to address, and what would happen next. Basically, the phone interview was a detailed conversation going over the questions one submits in an application.