A little project I cut together back in may. Had the idea around lunch-time, captured the film, edited, posted it around dinner time. Its had an alright run on youtube.
Some complications I ran into:
The woman speaking in the mi3 trailer
The two guys saying "Its Hunt." "I know its Hunt" - I replaced the music with the original mission impossible theme from the first movie, and had lines from SR. It worked alright, the music isn't quite the same, but it still works.