I remember when we were at Sundance, we were in Robert Redford's screening room, and I had never seen the film look so beautiful or sound so great. It was really big and really powerful, and I had a sense of accomplishment in finishing a project like this.

For me, moving from photography to film was very easy.

A lot of times I had footage that didn't have sound [in the Dream of Life film] - either I didn't bring a sound recorder, or I forgot to turn on the sound recorder - so we would have to improvise and build those scenes.

At the beginning I didn't even really think about making a movie [Dream of Life]. I was just thinking of documenting somebody.

When I started photographing Patti [Smith], I knew that there wasn't a whole a lot of information out there about her. I was periodically interested in films, and so I just kept asking her if I could come around.

I thought about how to film something, how to take pictures of it and how to mix it all together. And I was getting that through Patti [Smith] - because she takes pictures, performs, writes; she does so many things, and that was a big inspiration to me. It helped me realized that I'm not just a fashion photographer. I wanted to do all these other artistic things as well, and during filming my mind opened up to those possibilities.

I was making a film [Dream of Life] about Patti [Smith], but I was taking pictures, too.