The EDINA Film & Sound Online service provides free access to hundreds of hours of film, video and sound material which can be used in learning, teaching and research.  

Recently added is a huge collection of material from the Wellcome Trust.  The collection amounts to over 60 films and inlcudes quality material intended for doctors, surgeons, nurses and students.  You can trace the evolution of medicine and health over the last 100 years.

Access the service from the library A-Z database page or from here http://www.filmandsound.ac.uk/

Enjoy!