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Siri ad features John Malkovich

(CBS News) Add actor John Malkovich to the list of celebrities enlisted to advertise the iPhone 4S' personal digital assistant Siri.

Zooey Deschanel, Samuel L. Jackson star in iPhone 4S Siri commercials
Full coverage of Apple at Tech Talk

In the commercial Malkovich asks Siri one-word questions, like to which the software gives presumptive answers. When Malkovich says "evening," Siri responds with the actor's schedule for the night. The actor even asks for a joke, in which Siri responds with: "Two iPhones walk into a bar. I forget the rest."

The "Siri and celebrities" ad campaign kicked off in April, with previous commercials starring "New Girl" actress Zooey Deschanel and actor Samuel L. Jackson.