Going undercover, Toni Collette learned from her role in the big-screen thriller "Imperium," is ‘‘incredibly stressful." ‘‘You have to keep all the lies in perspective and make sure you’re presenting a believable human being," she said. "It’s not too dissimilar to my own job, except I won’t die doing my own job."adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-LIFE_ENTERTAINMENT","nativepaywallcategory" : "NATIVE_PREM-LIFE_ENTERTAINMENT"};