As Griffin cycles through a park he passes a man in a blue blazer sat on a bench. A little farther on a shot over his back sees him approaching another bench on which a man and woman are sat but a face on shot of him having passed the bench shows it's now occupied by the man in the blue blazer
When Shane is first seen throwing lettuce into Bernie the Gorilla's pen, a leaf lands right next to the bucket. In the shot immediately following from the other side, the lettuce leaf is gone without Shane having picked it up or thrown it in.
As they pull up to the TGI Friday's it's shown as a reflection in the windshield, As if the sign was right in front of them. While the sign is about 50 feet to the left, about 20 feet in the air, From where the van parks.