The ever-building harassment scandals have set an unprecedented number of film and TV projects adrift as well triggering unemployment for many executives, according to Peter Bart and Mike Fleming in their 15th edition of The Bart & Fleming Podcast.   Producers who were once delighted by the entry of Amazon into Hollywood, for example, are now trying to find new backers for their projects which were cancelled by executive turmoil.  Meanwhile top stars like Matt Damon and George Clooney are in short supply on the awards screening circuit as mid-budget star-driven vehicles falter with critics.