Jonah Hill dropped around 40 pounds for his role in the action flick 21 Jump Street, and he also left behind his longtime girlfriend Jordan Klein!
The 27-year-old Moneyball star and Klein recently broke up, sources confirm to Us Weekly.
The exes -- who first met in high school -- were spotted packing on the PDA as recently as July 2011.
A source told Us "Jordan always seemed really happy and in love. I never heard a single complaint about their relationship." So the reason behind their split? "It was probably traveling. She would always go where...