No, that's not an infrared film (?). I saw a couple of curves like that, and I decided to stick with infrared because 1) I like the look of IR, and 2) I thought color rendition would be unpredictable with that film. The one I have has a simple curve that ramps up from 600 or so up to the 1000nm range, in a fairly linear fashion. So it has higher sensitivity the longer the wavelength, therefore using a 820nm filter does not require exposure compensation over using a simple red filter.
I've tried locating the graph I saw just now, I'm not having any luck with The Google. I might have saved it on my office computer, so I might yet be able to find it.
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