Mandle got it! It was indeed Lost Boys.
I should hope so! I've seen that movie like 50 times. (The buff dude playing the sax just happened to be playing with his band on the beach so they asked them to be in the movie.)
Okay next quote (I couldn't find the exact quote online but here's how I remember it. Should be pretty close.)
"What are you doing?"
"Making holy water."
"I thought only a priest could do that."
"I am a priest."
"You became a priest?"
"Yeah, I went online to the church's site, paid the five bucks, and clicked the "ORDAIN ME" button."
"And that works?!"
"Never had any problems."