Jake Gyllenhaal on Acting: 'It's Just So Hard' (VIDEO)

On 'Good Morning America' (7AM ET on ABC), Jake Gyllenhaal joked about the "grueling" shoot for his upcoming movie 'Prince of Persia: The Sands of Time,' which involved working for several months in Morocco, sometimes in 120 degree heat. Aww, poor Jake! For most of us, that qualifies as a vacation.

"It's just so hard being an actor," Gyllenhaal deadpanned. "It was just really hot ... I don't know how we do it sometimes. You know what I mean?"