Amazon has Night at the Museum Collection (both movies) for $18.99 shipped (with Amazon Moms or Amazon Prime). You can also get $5 worth of eligible movies and TV shows from Amazon Video On Demand after you order your item.
The Mummy Trilogy (3 Movies) [Blu-ray] is also $15.99 for all three movies.
Miranda says
I know this was posted much earlier in the day but Walmart has the trilogy listed for $15.00 and you can get free site to store delivery (or $1.97 to ship to home). Plus 2% back if going through ebates.