Unfortunately no off the shelf emulsions are panchromatic. You could experiment with making liquid light panchromatic but that'd be no small task. Or you could use an orthorchromatic film (like X-ray maybe) and use a blue and green filter, but I don't think the 2-color rendering would be nearly as good as green & red.

Having just read a book about Etienne Jules-Marey, this mechanism was quite appealing!