“We Can Do It!” So said Rosie the Riveter, and so say the women of Long Beach in Into the Breeches!, a vibrant new comedy by George Brant. It’s 1942, and the leading men of Long Beach’s Oberon Playhouse are off fighting overseas. With “The Show Must Go On!” as their battle cry, a band of passionate, yet inexperienced, performers rally together to produce the theater’s season opener — an all-female version of Shakespeare’s ambitious Henry IV and Henry V. Will their production be a victory on the home front, or a target for rotten tomatoes? A hilarious and moving story about what happens when we’re all in it together.