In downtown Pittsburgh’s Benedum Center, anticipation crackled in the air as a sold-out theater brimmed with eager patrons ready for a three-hour escapade of laughter and seat-swinging delight. From Nov. 28 through Dec. 3, the Pittsburgh Cultural Trust presented the musical adaptation of the 1993 comedy film “Mrs. Doubtfire” comedy film. “Mrs. Doubtfire: The Musical”...