A documentary featuring leading stem cell researchers and advocates will be screened today at 10 a.m. in the University of Pennsylvania's Biomedical Research Building auditorium.

The 40-minute film, Hope Deferred - Perspectives on Stem Cell Research, was produced this year by the non-profit a stem cell education and advocacy organization founded by Brooke Ellison, a ventilator-dependent quadriplegic. Her autobiography was made into a movie directed by the late Christopher Reeves, who was also completely paralyzed by a spinal cord injury.

Following the film, Ellison will be on hand to lead a discussion.

The screening is being sponsored by Penn's Center for Bioethics and the Institute for Regenerative Medicine.

For more information, see www.bioethics.upenn.edu.