Kirk Cameron’s patriotic documentary “Monumental” had an impressive opening last week, grossing $1.23 million for a $2,400 per-screen average — a figure that places it close to some of the most successful faith-based films ever and could help it land in more cities. Perhaps most impressive, it did it on a weeknight, playing in 550 theaters on a Tuesday (March 27). Although the March 27 showing was a one-night event, it is still showing in six theaters and will roll out in about 25 more cities April 13, according the press release.