What is the ruling on watching pornographic films during the day in Ramadan with lust and the release of pre-seminal fluid (madhy) without masturbating, and what is the expiation for that?

First: The treatment for depression is drawing closer to Allah and obeying Him, as well as consulting trustworthy doctors.

Second: Abandoning prayer is among the major sins.

Third: Watching impermissible things that are forbidden is a sin from which one must repent. What helps with this is supplication (du'a), remembrance (dhikr), keeping company with good people, and striving against one's self.

Fourth: Intentionally causing seminal fluid (madhy) to be discharged by looking during the daytime in Ramadan is a sin that only necessitates making up the fast (qada') according to the Malikis. The fatwa issued is that the discharge of madhy does not necessitate making up the fast, but if you make it up as a precaution, that is good.