IR film is particularly interesting for long-exposure night pictures, I think. Sometimes heavy over-exposure can give a graphically interesting dissolvingness about street lamps and low light sources that you don't particularly notice at the time. I particularly like how HIE renders movement --gives a different appearance to traffic, for example, that's wispy and just plain interesting. Interesting for still-life set-ups as well, sometimes. It's an interesting film in the palette, but should be used in a way that somehow sidesteps the instant recognition of the trademark IR appearance. IR negatives in lith can be very interesting, though no panacea. Portraits.... yes, sometimes, perfect for those goth bands! WeeGee's "cinema flash" pictures, made with IR film, are magnificent. Cool film, it can sometimes really hit the spot.