Continuity mistake: The note Jenny puts up in the restroom changes; when Starman goes into the bathroom while Jenny is signing the receipt, notice that the postage stamps holding the note to the mirror are now in different positions and the word "help" is smaller. (00:35:55 - 00:36:45)
Continuity mistake: The weather changes at least twice during the end sequence at Meteor Crater. Take a look at the clouds in the background of all of the shots, especially those looking at the San Francisco Peaks (near Flagstaff, AZ). The extreme long shots of the helicopters coming show dark clouds, while the wide shots show a mix of cloud free and then cloudy skies.