The Lineup:
Brad Pitt, pre-father-of-10-third-world-country-kids, and Edward Norton.
Fart Factor:
9.8765 out of 10. That black photoshopped line is the only thing separating the two. Unfortunately, it doesn't block the pungent smell. One is obviously suffering more than the other.
Most Likely Fart Suspect:
this is a no-brainer. Brad smiles with a sense of accomplishment while his co-star has the typical "you expect me to lick your taint after that?" look. Brad Pitt, I find you guilty.
Interesting Twist:
Brad actually likes the smell of farts. Ed farted, but realized he sharted. Pass the soap.