I can confirm that this player does not work with: Futurama: Bender's Game or Dodgeball... both Fox movies.
I bought this when Best Buy was having a special: buy 10 BluRays (from a list of 50), an $80 HDMI cable and get this player free. Of the 10 movies I chose, only those 2 did not work, the others (5 Warner Bros, 2 Miramax, 1 Disney/Pixar) all worked just fine.
Futurama: Bender's Game
This disc loads to its menu, select play, and the Fox logo clip plays, along with a warning... then the screen goes black and the display on the player says "35 00:00:00" and nothing happens. I let it sit for over 5 minutes to see if it would start, no luck.
This disc also loads to its menu. This behaves similarly, but instead of sitting at a black screen forever, it quickly just goes back to the menu instead of playing the movie.
Just spoke with Insignia customer support, and they say they will have a firmware update available in early 2009. Seems like a long time to me, but at least the guy knew what the problem was and what a firmware update was.