Yes. Read the FAA web page. Answer is that if you receive any compensation, smelling the brides perfume, for the use of an UAV you must pass and receive a 107 Authorization. The test costs 150dollars to take and the test is not easy. If you fail you have to wait two weeks and pay 150dollars more to retake it. You must take the test at an authorized test center and you must schedule the test date and time with the test center. The test is given by computer and you must get an 75 percent of sixty randomly chosen questions, 48, to pass. There are some excellent study programs that run around 200dollars for a lifetime membership and if you pass the course and fail the test they will pay for the retest. The FAA does provide study guides but they are not enough to pass most versions of the test. The main reason for 107 is to provide guidelines for public safety and designate a PIC, pilot in command, for any commercial UAV, unmanned aerial vehicle, Operation.
Filming a Wedding for non 107 Pilots is shear folly and an invitation to disaster.