At the 22:27 mark, Mr. Freeze is watching his henchmen fighting Batman and Robin, and he is not in a freezing part for a few seconds, but instead in the reddish normal temperature zone. Next time he is shown he's back in the deep freeze.
Several times, part of Batman's, Robin's, and Kolevater's bodies enter Freeze's cold zone, but the actors do not react.
The month is said to be July, but this conflicts with a number of visuals. A lit fire is seen in the fire place of the Wayne Manor study, while many peripheral characters are seen outside wearing cold weather clothes. In addition, during summer months, even the tallest mountains outside a city such as Gotham would not have the winter weather conditions portrayed outside Mr Freeze's hideout.