Here's a list of all the codes I've found that give you $5 off. You can only use 1 code per order, and each code can only be used 1 time per account.
No promises that these are still valid; some of them may be expired. If one doesn't work, just try the next one.
GALAXY
NEWYEAR
SCHMOES
FRIENDS
NEWAGEMAMA
CHRIS
HURRY5
GOOGLE
ORDER5OFF
TWITTER5
HGG2016
MARRIEDMYSUGARDADDY
MOMMYKATIE
THESMALLTHINGS
AHORROSPARAMAMA
SCB
MOMMALEW
HOLIDAY
MWC
SWNN
SWR
NAUGHTYMOMMY
MAKINGSTARWARS
SWU
HEIDISHEAD
JAMONKEY
SOCALCITYKIDS
EXTRA
GIFT
2016
PUNKIN
SI5
If you find that a code doesn't work, you can let me know and I'll delete it from the list. I've compiled this list over time from blogs/podcasts/Atom's social media, so they're all public use/ok to use.
Also: if you have AMC Stubs Premiere, Atom will waive the ticket fee for AMC showings.