I asked a similar question not long ago in Module dependency tool? and was directed to several alternatives:

Module::Dependency
Module::ScanDeps
GraphViz::ISA
Module::Use

The first one one the list, Module::Dependency, was so good that I never went on to the others. It recursively scans directories for dependencies among modules and it can produce a dependency graph for any module (as well as ascii text versions). The graphs are a great help to reveal complex circular dependency chains.

(Note: the EPS output style produced broken Postscript that would not print, but the PNG and JPG styles worked fine.)