Autumn marks the start of a new theater season, but you don't need to shell out big bucks on Broadway shows to give your kids a memorable live entertainment experience in NYC. This fall, preschoolers will go gaga for engaging, page-to-stage adaptations of some of their favorite picture books and TV shows like The Ugly Duckling, Daniel Tiger's Neighborhood, and Mr. Popper's Penguins. Meanwhile, school-age children can catch a pair of steampunk-styled spectacles—Cirque du Soleil's Kurios and Twenty Thousand Leagues Under the Sea—plus avant-garde offerings at Lincoln Center and La MaMa. Best of all, 10 of our picks are $20 or less per ticket.

NYC's FREE summer concert season comes to its annual close in August, but it goes out with a bang. We've rounded up more nearly two dozen no-cost shows for families and kids that are worth the time, energy, and travel.

Since most of these performances take place in parks and playgrounds, you can make a day of it by packing a picnic and soaking up some complimentary culture.

My daughter was just 18-months old when she saw her first circus show (Big Apple Circus, of course). We've gone back every year and by the time she was in preschool, she was begging me to show her how to hula hoop, juggle and clown around. Except for the acting like a clown part, I am seriously circus-skill challenged. But there are lots of cool circus programs in NYC that are happy to teach aspiring acrobats and budding Bozos the tricks of the trade.

While we already have a post on trapeze classes for kids, the programs spotlighted here train children in a wide variety of circus skills, not just the aerial arts. Similar to theater courses, circus arts classes can help kids build their confidence, spark their creativity and get a great physical workout. Not sure how your kid would take to a circus class? A lot of these programs offer drop-in sessions so you don't have to make a long-term commitment. On the acrobatic flip side, if your kid is obsessed with circus, many of them offer semester-long courses and awesome summer camps, too. Here are 11 circus classes for kids in New York City.

You can find more NYC classes in our Classes Guide and Directory Listings.

New York City's family theater scene is hotter than a heat wave. Some people might think the dog days of summer are a cultural wasteland and that all the cool openings won't start again until fall, but that's just not the case when it comes to kids' shows.

There are options for all ages, interests, and budgets, including a page-to-stage adaptation of a Junie B. Jones picture book, family-friendly outdoor Shakespeare, the return of a glow-in-the-dark extravaganza, and a brand-new Spectacular starring the Radio City Rockettes. Best of all, some picks are less than $25 per ticket, and three are 100 percent FREE! Plus, we found discount codes for the pricier ones.

The Intrepid Sea, Air & Space Museum is getting ready to boldly go where no American has gone before! Imported from the Canada Aviation and Space Museum and opening Saturday, July 9, Star Trek: The Starfleet Academy Experience is a 12,000-square-foot, interactive installation where fans of all ages can immerse themselves in the sci-fi franchise's universe by "training" for various on-ship jobs. By completing fun tasks and taking brief quizzes at themed stations, find out whether you're best suited for a career in Communications, Medical, Science, Engineering, Navigation, Tactical, or Command, all while tracking your progress on a high-tech wristband that sends your results to your email.

For Trekkies, missing this exhibit would be "illogical" as Spock loves to say. But will casual viewers and little kids think it's out of this world, too? Find out whether your little space cadets are ready to join up, and tips for making the most of your voyage!

And don't forget to check out the NYC Museum Guide for all the latest kid-friendly exhibits.

Thought there were a lot of FREE family concerts in June? Well, NYC's no-cost kiddie music scene really heats up as summer continues. For July, we've rounded up 14 complimentary concerts for families that are worth the time, energy, and effort. The entertainers range from big names to local bands who reflect the diversity of our city.

Most of these performances take place in NYC's attraction-filled parks, meaning you can make a day out of it. So pack a picnic, stake out a spot, lay down a blanket, and soak up some no-cost culture. You can find more family fun in our jam-packed Summer Guide or our list of 100 Free Things To Do This Summer in NYC.

Although The BFG isn't as well known as some of Roald Dahl's other books (like Charlie and the Chocolate Factory and Matilda), it definitely has its share of rabid fans. If your family is among them, you'll be happy to hear that Steven Spielberg is quite faithful to the source material in Disney's new CGI/live-action hybrid, The BFG—though some of the Dahl darkness has been replaced by the director's signature wide-eyed wonder. Even so, for parents of younger children the question is, just how terrifying are those tot-eating giants? We've got the answer (and a photo in case you want to see how your preschoolers react), plus the scoop on whether it's worth splurging for IMAX 3D.

You certainly can't accuse Disney•Pixar of rushing things. The sequel to the 2003 animated classic Finding Nemo was 13 years in the making, so evidently the studio was more interested in getting it right than in making a quick buck. That philosophy shows in every aspect of this movie, from its breathtaking underwater visuals to its cute, quirky characters to its moving story, which flips the Nemo plot and has Dory (Ellen DeGeneres) searching for her long-lost parents. Although the heroine suffers from short-term memory loss, anyone who saw Finding Nemo will find the proceedings very familiar. The result is immensely enjoyable for both children and adults, with heartfelt messages about family, self-reliance, and perseverance.

But before you start pushing your stroller to the nearest cineplex, be warned: the PG-rated Finding Dory is a bit darker than its G-rated predecessor (notwithstanding the latter's Bambi-esque death of the mom sequence). Dory and her pals are frequently lost and stuck in scary situations. Can your preschoolers handle it, and—if you have older kids—is it worth splurging on IMAX 3D? No need to go on a fishing expedition: we've got watertight answers.