Brain Game: Filling Station #5 (with a twist!)

The Wednesday Wordplay challenge for today's mentalfloss.com Brain Game brings you a new entry in our popular new Filling Station puzzle series - but with a new quirk. While all the answers are related, this time, I won't tell you how, you'll have to figure that out on your own. Still, this one's not that tough. Enjoy!

Each of the following 5 entries can be turned into an English word or phrase by adding the letters from an English word or name - in the order it's spelled - into the blanks provided. An example (unrelated to the theme) appears below to get you started.

example:  D _ Y _ R E _ _ _
solution:  ADAMS (D A Y D R E A M S)

1.   P R _ D U _ _ I _ N     N U M _ _ _
2.   _ A _ _ D I C _
3.   C H E _ _     T H _ _ L _ S
4.   _ S     O _ R     _ _ E _ _
5.   _ _ N G _ E   G _ M