Theaters
The Beacon
4405 Rainier Ave. S
Seattle, WA 98118
(206) 420-SEAT
Northwest Film Forum
1515 12th Ave.
Seattle, WA 98122
(206) 329-2629
SIFF
Egyptian: 805 E. Pine St, Seattle, WA 98122
Uptown: 511 Queen Anne Ave N, Seattle, WA 98109
Film Center: 305 Harrison St, Seattle, WA 98109
(206) 464-5830
info@siff.net
Instructions
This site provides a calendar feed which can be consumed by calendar programs. The feed is available at https://seattle-movies.innocence.com/film_calendar.ics. If you'd rather add one calendar per theater, you can find per-theater calendars under "Per-Theater Feeds" in the navigation bar at the top of the page.
To add the calendar(s) to Google Calendar, follow these instructions.
To add the calendar(s) to Apple Calendar, follow these instructions (Mac) or these instructions (iPhone or iPad).
There's also a web calendar for today and the next two days available here.