This might have had something to do with the unfinished nature of the preview, but after a 2D Showscan test in the 80's Trumbull said -- based on audience reaction -- he wouldn't use HFR cinema for period or dialogue driven films.

ENGADGET: Editorial: Despite shaky 48 fps Hobbit preview, high frame rates will take off

"Such claims simply invite the reaction we see from the sceptical side about the slowdown in global temperatures over an extended period, " he told me.

BBC: Science & Environment