There’s St. Genesius who’s the saint of theatre. He’s also the saint of actors along with St. Vitus. The saint of actresses is apparently Pelagia the Penitent.
There’s Clare of Assisi who’s saint of television.
Saint Veronica’s the saint of photographers and I think that extends to filmmakers.
Of course there’s always St, Michael, the patron saint of anything we can’t think of.
(oh, and St. Isidore is the saint of the internet.)