Pixar Animation Studios released their 13th animated feature film this weekend with Brave.  While 13 may not be Pixar's lucky number (read Matt's review of Brave here), the overwhelming majority of their films have been huge commercial and critical successes.  This started way back in 1995 with Pixar's first animated film, Toy Story.  A couple of years after the release of the picture that put Pixar on the map, the animation studio collaborated with Nickelodeon and UNICEF to make a short PSA about the right to children's freedom of expression.  Not only does it have Pixar's signature look, but more importantly, their heart.  Hit the jump to check out the PSA and get caught up on all of our previous PSAs here. Check out the Pixar-animated PSA below:Click here to find about more about the United National Children's Fund (UNICEF).  Here's the official synopsis for Pixar's Brave, in theaters now:

Since ancient times, stories of epic battles and mystical legends have been passed through the generations across the rugged and mysterious Highlands ofScotland. In “Brave,” a new tale joins the lore when the courageous Merida (voice of Kelly Macdonald) confronts tradition, destiny and the fiercest of beasts. Merida is a skilled archer and impetuous daughter of King Fergus (voice of Billy Connolly) and Queen Elinor (voice of Emma Thompson). Determined to carve her own path in life, Merida defies an age-old custom sacred to the uproarious lords of the land: massive Lord MacGuffin (voice of Kevin McKidd), surly Lord Macintosh (voice of Craig Ferguson) and cantankerous Lord Dingwall (voice of Robbie Coltrane). Merida’s actions inadvertently unleash chaos and fury in the kingdom, and when she turns to an eccentric old Wise Woman (voice of Julie Walters) for help, she is granted an ill-fated wish. The ensuing peril forces Merida to discover the meaning of true bravery in order to undo a beastly curse before it’s too late.