SANDWICHED IN: After Happily Ever After (2011-62min.) is filmmaker Kate Schermerhorn’s quirky, funny and moving personal quest for the secret to a happy marriage and for answers to some timely questions about an institution that, surprisingly, is rarely examined in any comprehensive way. The film features an eclectic mix of long-married couples, from a couple who dress alike every day, to a pair of nudists and a pair of newlywed mothers, to a feisty English widow, all of whom reveal their secret to making their own unions succeed. Along the way, Schermerhorn chronicles the joys and heartbreaks of her own marriage, and finds that even the best advice can’t always guarantee happiness. 12:10 p.m.