Disney said today that it has added sneak previews of its Jon Hamm-starring baseball pic Million Dollar Arm on the night of Saturday, May 10. Those screenings come ahead of the planned May 16 wide release, which is unchanged. The move comes as the marketing ramps up for the based-on-a-true-story pic, about a fading sports agent (Hamm) who hatches a plot to turn a pair of Indian cricket players into major league baseball players. Disney boss Alan Horn said at CinemaCon last month that the movie scored higher than any other movie he has ever tested — either at Disney or his former home Warner Bros — and exhibitors were talking it up after a screening. Tom McCarthy wrote the script and Craig Gillespie directed.