Josh and Sam are brothers on the run in a stolen car in Josh and S.A.M. But what makes these fugitives different is that they’re little kids. Bandied back and forth between divorced, indifferent parents, they wander off, get attacked by an angry drunk, and escape in his car, convinced they’ve accidentally killed him. Complicating matters is that little Sam believes he’s a genetically altered secret weapon being sought by the government. When this film came out last fall, it was mismarketed as a knockabout comic romp. Even now, the video box bills it as ”Home Alone meets Thelma & Louise.” It’s actually more like the latter: smart, stylish, funny, and sad.