https://www.regmovies.c
Above link is the promo detail page, but you may have to already be subscribed to emails from Regal to qualify for the 500 points and free popcorn.
See attached picture for what to look for in the email.
Must click all four weeks in February for the free popcorn (similar to free popcorn from October 2019), starting with today’s email. Today’s email also gives a 500 point regal points bonus.