Continuity mistake: When Logan is talking to Laura while it snows, the amount of snow on Logan's shoulder in the close-ups remains unchanged all the time. However, later, when the shot changes to a wide angle, most of the snow is gone. Too fast for it to melt.
Continuity mistake: When Tuba's friend drops the strainer to have a quick exchange under the table, the strainer falls next to the table's leg, but the unattractive girl picks it up from Tuba's left (the leg is at his right). (00:09:20)
Continuity mistake: In the diner, the glass of water next to Howard appears/disappears and changes positions between shots.