Actors Oscar Isaac and Carey Mulligan underwent a lie detector test in a recent video produced by Vanity Fair [1].

The appearance highlights the promotional cycle for the second season of the series Beef, bringing together two high-profile leads in a candid format.

During the segment, the actors answered a series of questions while connected to a polygraph machine. The video explores a variety of personal and professional topics to determine the veracity of their responses [1].

One specific line of questioning asked whether the film Ex Machina had made Isaac an expert in artificial intelligence [1]. The interaction serves as a lighthearted exploration of the actors' public personas and their experiences within the industry.

While the video focuses on the chemistry between the two stars, it primarily functions as a marketing tool for their upcoming work on Beef. The format allows viewers to see the actors in a less scripted environment than a traditional press junket [1].

Oscar Isaac and Carey Mulligan underwent a lie detector test

This promotional content reflects a broader trend in entertainment marketing where traditional interviews are replaced by high-concept, gamified challenges to increase social media engagement and visibility for new streaming seasons.