the actor was furious when the line of questioning suddenly got personal in a recorded chat with channel 4 in london to promote his new film avengers : age of ultron .
he had been on good form when the exchange started - in which , as arranged , he would discuss his experiences on the new blockbuster which premiered in britain on tuesday .
but he could be seen getting visibly uncomfortable when interviewer krishnan guru-murthy began asking about his long-conquered personal demons .