Continuity: Simon Pegg's character shouts at Manny as he is picking up a muffin, and he slams it onto the desk, smashing it and making a large messy pile of crumbs. The shot changes, then changes back so you can see the muffin (in the same scene) and it is a perfectly formed, whole muffin with no crumbs around. Then when Fran shows up and Pegg's character leaves, the muffin is back to being a messy mound.

Continuity: When Fran arrives at the store, in the shot from outside you see a pile of unopened mail on the mat just outside the door. However as Fran opens the door and walks into the shop, the pile of mail has disappeared.

Continuity: In the scene where Bernard is cleaning his teeth with the floor brush, he takes a crab from the jar of water. You can see that the crab is wet from the water, but in the next shot, where you see the crab close up, it's dry.