Though apparently not indicated in Brian's excellent index, many of the Archdiaconal Wills from 1660-1699 are summarised on my site (coutesy of Joyce Oates) - see http://www.manxnotebook.com/famhist/wills/index.htm
The summary might save a wait for a film that will be of little use - also the writing of the earlier wills takes some practice in reading.