The pinoy series deals with gay boys in a catholic school and during a church organized camping trip. It is a lot lighter than Original Sin, with a lot of comic relief characters.
Both of these productions center around a male lead trying to make sense of how his homosexuality fits within his religion and attitude towards religion, putting him in a difficult position when another boy in his religious circle starts showing interest in him.
Ticket to Heaven reminded me of this lesser-known Korean short film. Very similar themes and dynamics (so far). Both lead actors did a great job showing religious guilt for being gay.