An Orono movie theater will once again be home to a church congregation this year. The Pines Church — which has a location in Bangor — is expected to open its new church at Spotlight Cinemas on Stillwater Avenue Sunday, March 7. The Pines is affiliated with ARC Churches, an international association of relational churches. It’s not uncommon for new churches to get their start in movie theaters or other vacant rental spaces in Maine. The Rock Church — which was one of Bangor’s fastest growing congregations — ran a second location at Spotlight Cinemas for about four years.