Question for adding a new list

Hi!
I don't know if someone can help me.
I'd like to create a list with several actors and 3 correspondents movies (as posters) to each actor (other members can do that i think).
I don't want all images to be mixed.
Maybe a problem of appearance and display.

Thanks!

You may want to use the "Add to List" feature, then edit them in the arrangement you're describing?