His character was added into the beginning part a bit, and then is seen a few times in flashbacks... but he wasn't in for very long. :[ He had the beginning, a memory-scene (from when Karkarov was about to be sent to Azkaban but lets slip that Crouch Jr. is a Death Eater), and then at the very end when "Moody" changes back into him.
I wish he'd been in it more but he makes an excellent bad guy so it was alright. xD;
After marathoning all seven with friends this weekend, I think the last one is my favourite, probably followed by the first one because it was pretty accurate without Harry being all dark and emo.
And omg Tennant was amazing. :] He had even more screen time than I remembered and he makes an awesome villain. xD;