Parents need to know that Frozen 2 -- the sequel to Disney's 2013 blockbuster -- continues the adventures of Arendelle's magical Queen Elsa (voiced by Idina Menzel); her kind sister, Anna (Kristen Bell); and everyone's favorite snowman, Olaf (Josh Gad). This time around, the characters undertake a dangerous journey to a mysterious enchanted forest, hoping to discover the source of Elsa's powers. The sisters learn more about their parents' deaths and backgrounds; thanks to several flashbacks, viewers may feel even sadder about the orphans' loss. While there's lots of humor (thanks, Olaf!) and -- of course -- big musical numbers, the sequel is ultimately a bit more intense than the original. Expect perilous (though never graphic) scenes of elemental spirits chasing and attacking Arendelle/the main characters with wind, water, fire, and more. There are also chases, battle scenes with swords, dark secrets, and -- spoiler alert! -- a couple of upsetting (but temporary) deaths. Underlining everything are positive messages about sisterhood, empowerment, acceptance, tolerance, perseverance, and true love, and both Anna and Elsa are examples of strong women who lead confidently and communicate with and support each other.