When Richie and Eddie are following the love bureau lady into her office, Richie has the clipboard in his left hand. However when he enters the office in the next shot, the clipboard is in his right hand.
When Eddie and Richie are leaving the dating agency, Eddie opens the door and bangs his head. Watch as the whole stage wall to the left of the shot shakes as he does this.
When Eddie says "Pork" to Natasha, Richie jumps up and shouts at him. When he says "She is my fiancée", you can see a boom mic reflected in the Elvis Presley photo.