The Village Voice has posted this very excellent Q&A with Ms. Kerthy Fix, director of Strange Powers: Stephin Merritt and The Magnetic Fields. Of particular interest is the bit where they talk about Stephin Merritt's fanbase. Several astute observations are made in this regard, to say the least.
Then, there's this review of 20,000 Leagues Under the Sea (thanks to the increasingly-mentioned Nick David for this review) which makes the exact same complaints as the last one, right down to the MST3K reference. This is an unexpected complaint, really, but doesn't damper my excitedness over hearing the work.