Double Header Movie Nite & Potluck

Old enough to remember when movie theaters offered 2 films a sitting (and cartoons)? Trying this out on a
Friday April meetup. First movie starts around 4: 30 to 6:00. We brake for potluck dinner (and bring wine if you'd like). Then, we'll watch the 2nd movie, Come for the first and stay for potluck. Come for the 2nd starting at 7:00 but potluck at 6:00 or come for both.
Please let me know what you will bring for potluck. and the movies?
Alfred Hitchcock The 39 Steps and The Lady Vanishes. Hitchcock early films but quintessential Hitch.