Stu Shepard is a fictional character from the 2002 film Phone Booth, directed by Joel Schumacher. He is portrayed by actor Colin Farrell and is depicted as a publicist who finds himself in a life-threatening situation when he answers a phone call while standing in a phone booth. In the film, Stu becomes the target of a sniper who threatens to kill him if he hangs up the phone. The story unfolds in real-time, showcasing his struggle to survive while revealing his personal flaws and the consequences of his actions. The film explores themes of morality, accountability, and the impact of modern communication.