When Mac and Charlie enter the gym with the stereo, and they talk with a man, when he is shown, he is shown hands down. Then when Mac and Charlie are shown, he is seen crossing arms. Later, he crosses them.
In the closing credits, "Title music" is written "Tilte music."
In the first gym scene Dennis, in a blue hoodie, shorts and flip flops can be seen walking across the background at around 14:40.