Towards the end, when Jack and Dale are looking through the album of baby pictures, Dale says, "I want that one," and begins removing the plastic sheet covering a 5x7-ish portrait with a blue background. Jack slaps his hand and says, "You can't do that." When they turn the page, the photo has changed to a mostly red, full-page sized image.
When Dale and Jack are looking through the picture album, Dale starts to take a picture out of the book that's mostly dark (dark blue and gray) and Dale tells him not to. When they turn the page, that picture is mostly red.
Characters are shown supposedly leaving San Francisco for Tiburon, driving on the upper deck of the Bay Bridge - which only leads towards San Francisco. Additionally, the logical path to take to Tiburon would involve the Golden Gate, not the Bay Bridge.