Is there an adjective meaning "having the same name as another work"?

Is there an adjective to describe a work that has the same name as another work? The two works in question may or may not be related.

For instance, instead of writing

The movie The Nutty Judge is based on William Shakespeare's play of the same title.

I would like to write something like:

The movie The Nutty Judge is based on William Shakespeare's same-titled play.

The adjective "homonymous" is roughly correct but I haven't seen this used in real life. (I have seen "eponymous" being used erroneously in this context, though.)

I don't see anything wrong with homonymous. It's often used in such contexts.

homonymous, adj. - having the same designation http://www.merriam-webster.com/dictionary/homonymous

Based on Bernard Shaw's homonymous play, the film dilutes much of its social critique, but retains a moral structure where...

Besides your own suggestion of homonymous, you could try similarly titled or identically titled, depending on the degree of overlap in the respective titles. (You'll find plenty of corroboration for those usages if you run Google searches on them.)