What if I told you that last night I watched a movie w/ a snarky narrator who periodically broke the fourth wall throughout...and it wasn't any of the Deadpool films. And it was from 1991. Long before Mr. Reynolds had the brilliant idea to do the same thing.
"Big Girls Don't Cry...They Get Even." Felt like an 80s movie to me. I don't think I was ever previously aware of it. It's on Amazon. I enjoyed it. Dizzying lineup of a non nuclear family with various divorces and remarriages, siblings, half siblings and step siblings. Most of which can't stand each other. Our narrator runs away to a beautiful lake in the mountains in California (I'll have to look up where it was filmed, legit looked like the Sierras; they mentioned the town of Bishop at one point which I have passed thru several times). The whole crazy gang goes to look for her. Most of the characters exhibit some degree of personal growth and there is some familial bonding that goes on. Don't know most of the cast, although I've seen David Strathairn in a bunch of stuff, I at least recognize the name Griffin Dunne, and it was pretty weird seeing a teenage age Jenny Lewis playing a vapid teeny bopper. I keep forgetting she had quite a few acting credits before she walked away from the biz and started a band. And a pre "Boy Meets World" Ben Savage. The lead was played by Hillary Wolf, I thought she did a good job. Just looked her up and she was in Home Alone and its sequel. And then she disappeared from Hollywood.
edit--much of it was filmed at Lake Mamie, near the town of Mammoth Lakes. I haven't been to that particular lake, but I've been to the town and have done several hikes in the area.