CinemaCon organizers are questioning their security strategies.

After a woman served Olivia Wilde custody papers in a manila envelope from her ex-fianc­é Jason Sudeikis during CinemaCon on April 27, convention organizers are now reviewing how the unidentified female got into the event and close enough to hand the documents to the Be happy, Darling director.

Mitch Neuhauser, Managing Director at CinemaCon LLC, told People in a statement, “As the convention organizer, we have never in the history of the convention had an incident where a delegate has approached the stage who was not authorized to be there. This incident has prompted us to reevaluate our security measures in order to protect all our guests.

Neuhauser couldn’t tell Neuhauser if the unidentified woman had been later detained or if she was authorized to access CinemaCon.

On April 27, Wilde—who shares son Otis8-year old and her daughter Daisy, 5 with Sudeikis—took the stage at CinemaCon to speak about her upcoming thriller, Don’t Worry DarlingWhat stars? Florence PughWilde’s boyfriend, the singer Harry Styles.