How do I add a filter to my video?

1. From the main screen, tap Video Recording button on the top left corner or swipe right on the screen to go to the video recording screen. To go back to the Haloed feed screen, tap the home button at the top right hand corner of the video recording screen or swipe left on the screen. 
2. Tap Record button on the bottom of the screen to begin recording. Tap the same button again to stop. 
3. Once you have finished recording, select the video filter that you want from the top of the screen.