Continuity mistake: When Francis Fryer throws the cowboy he loses the scarf in his hand but when the camera angle changes he has it again.
Continuity mistake: In the scene after the dance, when Calamity and Wild Bill Hickok return to her place, she is wearing a fancy, floor-length off-the-shoulder dress - no straps. Calamity asks Bill to turn around so she can change. After Bill turns, the cut back to Calamity reveals her wearing an undergarment with wide straps over the shoulders and a pair of bloomers. No way that garment could have been under that dress.