Can you send a native iMovie file to someone so they can update it later?

I have a client who needs a slideshow created including intro and landing pages along with photos from a trip. The idea is for me to set up the template, get the intro page and landing pages (Day 1, Day 2, etc.) in place and add a number of photos for each day of the trip. The photos I will be placing in are placeholder for now and they were going to swap those placeholders out for the photos they've chosen. This template will stay in place and be updated for upcoming trips as an ongoing project so I need something easy for them to adjust on their own. Is it possible to send them a native or in progress file (like a packaged InDesign file) to them so they see what I'm seeing instead of sending them a completed movie?