TADPOLE is a nick-name for 15 year-old Oscar Grubman (Aaron Stanford), who pines incessantly for his stepmother (Sigourny Weaver).Over Thanksgiving break, Oscar comes to Manhatten, drinks heavily, and ends up in bed with his stepmom's best friend Diane (a scene stealing Bebe Neuwirth). Oscar takes up a lot of the remaining film trying to convince Diane not to tell his stepmom.Tadpole's main problem is Aaron Stanford, who not only looks too old to be a high school sophomore but plays Oscar as very gay while still trying to be a ladies' man. Gender confusion might be a worthy subject for a black comedy, but that's not the issue here.Too bad Tadpole didn't run into Igby, another pretentious spoiled but charmingly demented teen in Manhatten on school break. He could learn a few things. Disappointing.