Tropic Thunder – Lowest Price Guarantee*
The Strangers – $36.99
Star Wars: The Clone Wars – $41.99

* K-Marts lowest price guarantee states that if you find a cheaper price on the same product in stock at another store, when you buy it from K-Mart they will match the price and give you 10% of the difference.

That being the case you could get Clone Wars for $31 by matching Big W’s advertised price.