(2002, Josh Hartnett, Shannyn Sossamon)

Girl and boy ride a San Francisco Muni Flyer trolleybus, stay on board till the depot. Lots of footage, mostly inside:

I would guess this is the same bus, fleet number 5140, seen inside and out in a daydream sequence in which Hartnett's character sees large numbers of unclothed or undressing women. The second of these is a 'before' shot, if you see what I mean:

… cable car 52 also appears: