The cinema project got the go-ahead this week in the form of a final tax credit that fills a $1.75 million funding gap. Many supporters of the promising project heaved a sigh of relief. The idea of building a cinema downtown as part of a public-private partnership has been in the works for years, with significant public participation to get it past the unusual challenges of building a cineplex in a downtown, but the uncertainty about this final piece of the puzzle was cause for some anxiety this fall.