Only once when I was 13 and it wasn't film length, it went on weeks.
Mine was that I was on the the run for selling drugs in brazil. Police had me for a few days, I escaped, for some reason the police kidnap my family and I have five brothers and sisters extra. They torture it out of them on an obscure tv channel so I could see.
I manage to find out where they are and sneak in as an undercover cop. I see one of them get killed in front of me so I blow my cover.
I run and manage to escape but not before falling into the city reservoir. A girl finds me half dead, dream gets a sexual edge and she promises to hide me. But then she has a boyfriend who now wants to collect the bounty on me.
Somehow my dad has escaped and kills the bf, but not before he gets one last shot in. Bullet is pulled out and the girls dad treats me. We sit and plan a revolution.
Seriously it felt like weeks, I only gave you a summary because there is nothing more boring than reading dreams. It wasn't even my own body, I wonder if my mind slipped through a wormhole or something.
I only remember this because I typed it out a while after.