Brad Pitt surprised fans at another screening of 'World War Z' on Friday night (07.06.13).

The 49-year-old actor, who has been on a worldwide promotional tour for the film, delighted fans by showing up unannounced at a screening of his new movie in Los Angeles.

The actor addressed the audience before the movie began, according to, and said: ''I've been on the's been amazing, but damn it's good to be home.

''Thanks for coming out. ('World War Z') is big, it's bold, it's badass. You've never seen anything like it. It's the most intense thing you'll see all summer. If not, we'll give you your money back. Let's get this party started.''

The actor has made similar surprise appearances at cinemas in Chicago, Philadelphia, Atlanta, Georgia, and also showed up at a theatre in Austin, Texas, on Thursday (06.06.13).

Earlier this week he tipped a lucky waitress more than $700.

The actor splashed the cash as he ordered $1,000 worth of sushi and other Japanese dishes and gave the very generous tip to the stunned server at a family dinner to celebrate fiancée Angelina Jolie's 38th birthday at Japanese eatery Kuchi in Berlin, Germany, on Tuesday (04.06.13).