Joker director Todd Philips recently revealed that De Niro receiving the pipe bomb resulted in the FBI searching the set of the film.
Philips was afraid the entire ordeal would make working with the accomplished actor difficult, but it apparently did not phase De Niro.
While the pipe bomb had been sent to the actor’s New York office, the feds clearly wanted to be sure there wasn’t a secondary device in a place where the actor was planning to be.