Sean Penn reportedly refuses to return to ‘Gaslit’ set unless all cast and crew are vaccinated

COVID-19 is serious business for Sean Penn.

The two-time Academy Award-winning actor, filmmaker and philanthropist vowed not to return to work on the set of “Gaslit” — his Starz series co-starring Julia Roberts — until everyone on the production has been vaccinated for the virus.

Amid growing concerns over the highly contagious Delta variant spreading across the U.S., Penn is challenging Hollywood leadership to impose stricter COVID-19 vaccination guidelines on TV and film sets, Deadline reported.

The 60-year-old actor believes that vaccinating everyone on the set against COVID-19 must be mandatory and is offering to facilitate the vaccination effort, free of charge, through his organization, CORE.

Earlier this week, NBCUniversal, the studio behind “Gaslit,” mandated vaccinations in “Zone A,” which constitutes the cast and those who come in proximity to the cast. Production members must show proof of vaccination when they show up for their next shift.

But that’s not good enough for the “Dead Man Walking” star, who insists that unvaccinated individuals still put everyone else around them at risk on set, because crew that isn’t in “Zone A” still can come close enough to others to potentially spread a variant — for example, simply by being in the trailer of a cast member, for instance.

This marks one of the very first examples of a filmmaker or star taking such a strong stance and directly challenging Hollywood leaders to go further than an agreement and impose strong rules on a production by requiring everyone to be vaccinated.

If Penn follows through with his threat to stay out, it will delay the production.

“Gaslit” is a modern take on the Watergate scandal, which focuses on untold stories and forgotten characters of the time. Penn portrays former Attorney General John Mitchell and Roberts plays his Alaskan socialite wife in the political thriller helmed by Matt Ross.