while rainbow dash is recounting what she saw while she was flying; filthy rich can be seen opening a briefcase with a bright glow coming out of it. this is similar to the iconic briefcase from pulp fiction(although this likely was not intentional).
Rainbow Dash explains how she knew Twilight Sparkle was going to fly into a helicopter by reversing the episode and pausing on each individual person to explain how she knew came from Ricky Jay explaining Sydney Barringer's suicide in this film. Pinkie Pie also behaves like Dixon while rapping.