Other mistake: When Ben Chapman is yelling racial slurs at Jackie Robinson, his socks don't match the other Phillies players' uniforms. He is actually wearing the socks from the Boston Brave (Atlanta Braves now).
Other mistake: The Rolls-Royce at Watkins Glen, and the Mini in England, have the same English license plate.
Other mistake: Keira Knightley looks down at her phone, there is a beautiful female hand holding the phone with long slightly curved nail beds. This is not Keira's hand which is seen many other times times throughout the film. She has shorter nailbed and flat nails. (00:22:37 - 01:13:56)