Typical symptoms of motor tics include involuntary (uncontrolled) muscular movements of the mouth or eyes, head twitching, and shoulder shrugging. Examples of less common, complex tic symptoms are bending over to touch the floor, smoothing clothing and jumping.
The cast of the sci-fi blockbuster has become extremely close. Since they first filmed Star Trek in 2007, they've stuck together, and are able to celebrate their upcoming film -- in style. NEWS: 'Star Trek Beyond' Stars John Cho and Sofia Boutella Share Silly Dubsmashes With Late Co-Star Anton Yelchin.
Playing EXCLUSIVE: 'Star Trek Beyond' Cast-Members Remember Anton Yelchin Ahead of Film's Release. The cast of Star Trek Beyond is keeping Anton Yelchin in their thoughts, almost a month after the 27-year-old actor tragically died following a freak accident. ET caught up with the stars at the junket for the upcoming sci-fi flick, where they spoke of the tight bond they shared with their fallen co-star.