(Sorry - my "list" develops as they come to me)...
Life With Father (1947)
Yours, Mine, And Ours (1968)

I don't know (but I feel) if you've listed these two just because there's a
lot of family members in these two, but they are good, in varying degrees.
Life With Father is a great, old-fashioned comedy, and it's one of William Powell's finest films.
Yours, Mine, and Ours is good, not great, but Lucille Ball pulls off a very great performance, particularly ina scene with two of her step-sons spiking her drink and getting her slobbering drunk. She doesn't play it like her Lucy days. Very surprised to see how she pulled that scene off. As for both of the films, I like seeing actors who would go on to be famous in their own right in other projects in these older films.
In
Life With Father, the second-oldest son is played by Martin Milner, who would go on to fame in the TV-series
Adam-12 He's back row, far right, in the pic you provided. Here he is on the TV show:
In
Yours, Mine, and Ours, the pic you have had Tim Matheson of Animal House fame in the very back row, top left, in uniform and really young. And bottow, center, holding the little girl is Morgan Brittany, who went on to be in the famous
Dallas TV series. Here they are, respectively:
Here are a couple of "family movies" that are actually family movies, if you know what I mean:
Spencer's Mountain which has James McArthur (Hawaii 5-O) and Veronica Cartwright, (Alien), two future stars, in the cast shown below the movie pic
With Six You Get Eggroll featuring future star Barbara Hershey