High School musical alumna Vanessa Hudgens and Masters of Sex actress Annaleigh Ashford have joined Jennifer Lopez and Leah Remini in the romantic comedy Second Act, from STXfilms. Peter Segal is attached to direct the pic, which STX and Lopez, put together, based on an idea by Elaine Goldsmith-Thomas and Justin Zackham, both of whom drafted the screenplay. Said to be along the lines of Lopez’s previous rom-com, Maid In Manhattan, and classic comedy Working Girl, the pic…