Film festivals like Palm Springs International Film Festival often showcase a range of films, including independent and international cinema.

However, I couldn't find any specific information about a film titled "Miller's Girl" or Jenna Ortega attending such a screening.

It's possible that either the film or the event might not have been widely covered or that it's a fictional scenario.

If you'd like, I can create a fictional scenario around Jenna Ortega attending a screening at Palm Springs.