When Rich's reflection in the mirror shows him to be Mr. Bastian, Rich wears a ring on his right-hand ring-finger while his Mr. Bastian's reflection wears a ring on his pinkie.
Before Tony sweeps the DVDs off his desk, they change position from how they were just a moment before. In particular, the stack closest to the "Mercy Streets" poster on the wall changes the most. Not only does "G.I. Jane" disappear from the top, but the DVDs beneath it all have their spines turned away, a 180 degree turn from how they were before.