Writer-director Adam Sigal (“The Two Dogs,” no, me either) has cooked up a true (ish) story about a Hungarian American parapsychologist who visited the Isle of Man in 1935 to figure out why the locals insisted they were hearing from a talking mongoose.

As Nandor Fodor was a real person, sort of a pre-TV “In Search of” expert in the weird and paranormal, we’ve got that much to go on, at least.

As the estimable Simon Pegg stars, with Minnie Driver, Christopher Lloyd and Neil Gaiman lending his voice, there could be something cute to this.

Sept. 1.