A mysterious ATM has appeared in Los Angeles, offering free cash to anyone who can locate it and crack its PIN code. This interactive promotion is designed to build buzz for the upcoming comedy heist film "How to Rob a Bank."

The scavenger hunt began on Wednesday and will continue through Sunday. Participants must sign up online at whoshungryla.com with their name and email address to receive clues and a PIN code. These clues are intended to help them find the ATM's location in the city.

Once found, individuals who enter the correct PIN can win prizes. The ATM is stocked with ten $100 cash prizes, as well as movie-themed merchandise, including tickets and concession vouchers. The promotion adheres to a first-come, first-served basis, with a limit of one prize per person.

"Each eligible qualifying redemption will receive one available prize. Limit one (1) prize per person during the Promotion. Once awarded, a prize is reserved for that participant," according to the promotion's official rules.

The marketing campaign has garnered attention online, with social media users praising its creative approach. The film "How to Rob a Bank," starring Pete Davidson as part of a crew that documents their heists on social media, is directed by David Leitch, known for his work on "The Fall Guy" and "Deadpool 2." The movie is scheduled for release on November 13.