Eleventh Doctor in Deleted Scene of In Bruges
I had never seen this deleted scene of Ralph Fiennes' character Harry in a flashback from In Bruges, in which Matt Smith plays Harry in his twenties getting revenge for one of his friends. Not sure if it was cut because it didn't work in the overall flow, but as a standalone clip I think it's great.
http://www.youtube.com/watch?v=rANwBGXt7v8