Ends Thursday, Nov. 8: Written and directed by Jonah Hill, “Mid90s,” though made by a Hollywood star, isn’t a nostalgic indie “fable” in gritty skate-punk drag. It’s something smaller and purer: a slice of street life made up of skittery moments that achieve a bone-deep reality. And because you believe what you’re seeing, what the moments add up to, in their artfully random way, is an adventure.