Jake Gyllenhaal with Jonathan Ross on BBC One

Jake Gyllenhaal, smiling while he visits London, on 5th May 2010.
Jake Gyllenhaal returning to The Claridges Hotel In London on 6th May 2010.

"Jake Gyllenhaal, Alan Sugar and Adam Lambert join Jonathan Ross for this week’s Friday Night with Jonathan Ross on BBC One.
Jake Gyllenhaal says he enjoyed bulking up for Prince Of Persia: “When I got the muscles… I felt great.”

He also tells Jonathan that he plays a viagra salesman in his next movie but doesn’t need it himself: “I have no problems!” Source: primetime.unrealityv.co.uk