It's from "The Natural" -- Robert Redford as Roy Hobbs delivers a pitch in the scene at the county fair where he's about to strike out "The Whammer" (Joe Don Baker) and change the course of his baseball career. This publicity shot issued by Sony Pictures Home Entertainment to promote the new director's cut version of the movie (coming out April 3) has one small flaw. But what's bigger, is that they've also used this shot on the DVD disc that you're looking at before loading it into the player.
The mistake? Yup, Redford is a left-handed pitcher in the movie. Not a righty.