Clive Owen unexpectedly showed up to shoot his new movie, “Killer Elite, with “an ’80s mustache” because he thought it made sense for the era. “I looked at pictures of the ’80s, and everyone had mustaches,” Owen said. “If you look at soccer teams — any pictures from that period — mustaches were big, so I felt I should go there.” Luckily, director Gary McKendry agreed. Co-star Robert De Niro also embarked on his own facial hair experiment: While heading the Cannes jury in May, he began growing a beard because he thought his character needed one, even though he was snapped daily with super-groomed jury members Jude Law and Uma Thurman.