InfoPath Dev

I have two list 1-Brand 2-Flavors and two multiple selection list in my form 1-Brand (values from list 1) 2-Flavors (values from list 2 that contains one lookup field from list 1 that is a multiple selection field) I want field 2 show entries based on values selected on field 1, but field 1 is a multiple selection box. I know how to to filter if field 1 is a drop down list, but I am not having success using two multiple selection box. Is this even possible to do?

This seems to work as anticipated to me - see attached sample.

Thank you Hillary, but did not work for me, maybe I am doing something wrong because my fields are returning only one entry for each brand selected. I am sending an screen shot from the rule, sharepoint list and form preview, maybe you find what I am doing wrong.

Ah, I see - your schema is quite a bit different than mine. I'll try to set up something similar later today or tomorrow & let you know if I find a way to do this. :)