Movie I Can't Remember Name Of...I Saw The DVD And I Think It Said It Was Like An Indie Movie About A Grocery Store Guy Who Daydreams And Works After Hours Or Something...?

That sounds a lot like the movie Clerks (1994),which is about a guy, Dante (Brian O'Halloran), ซีรีส์สั้นจีน who works at a convenience store.
It's a Kevin Smith movie; it's the first movie Jay and Silent Bob are in. A sequel was released in 2006. It wasn't bad, but it wasn't as good as the first one.