In “Trainwreck,” Jeff (Seann William Scott) is a self-induced attention-deficit disordered, learning disabled, Tourette’s syndrome suffering, balance impaired, ex-alcoholic young man from the Upper East Side of Manhattan. He is also what you would described as “simple.” As luck would have it, Jeff (Seann William Scott) falls in love with a gold-digging socialite who in intent on helping him turn his life around.