Mars Attacks is one of those movies that ive seen randomly since it came out, and I cant take my eyes off of it when its on.

Its got a lot of cheesy 90's performances from Burton's cast, bad effects, bad shots, horrible structure.

but its the fun version of War of the Worlds, and the less "AMERICA, FUCK YEAH" version of Independence day.... and ends up feeling like a pulp comic for me, or like the pilot of some show i actually would watch.

NANAR!

EDIT: I'm surprised he failed to mention GRINDHOUSE. That was the most high-profile attempt I can think of to make something deliberately nanar and it failed to really take off precisely because everybody knew they were doing it on purpose. I mean, they were fun to watch, especially at the midnight double-feature, and I wish it had taken off and become a perennial thing, but it doesn't take on the same life of its own, "we've all just been through something incredible" experience of witnessing something you know was the product of earnest incompetence. It's not something you want to talk about and share with others.

As someone mentions in the comments, BLACK DYNAMITE comes closer to doing the job, but it's more a spoof of nanar, so while it's funny and something I recommend to people, it doesn't take your breath away in the same way as a ROOM or FATEFUL FINDINGS.