Audio problem: When Scott fights Ramona's ex-girlfriend, Ramona holds his hands while punching her. One punch misses her but the sound of a punch is heard.
Continuity mistake: The coffee mug changes position in Scott's hands during the opening scene at the breakfast table.
Deliberate mistake: During the fight with Roxy (evil ex number 4), she falls forward before Ramona's leg hits her.
Continuity mistake: After Envy Adams calls Scott and the crew backstage, Todd Ingram's wrist bands appear and disappear while his arms are crossed.