SAN FRANCISCO (CBS SF) – The main food vendor for Levi’s Stadium is giving away ‘golden tickets’ inside free popcorn at the San Francisco Ferry Building, Union Square and The Embarcadero Center Friday.

Four of the packages have free tickets to the preseason game a week from Sunday and another 15 have Visa gift cards tucked inside.

The giveaway starts at noon. The vendor, Centerplate directs people to follow @LevisStadium on Twitter with details on the exact location coming with the #ComeToPlay hashtag attached.