Looks a lot better on my phone than on the PC but I'm not sure how to maximise its quality using Windows Movie Maker.
My sister and I were in Finaghy, Belfast, when we seen 3 blazing gold lights through the window moving down the sky. This was at around 11:20pm. We opened the kitchen door onto the patio and seen that the lights were equal in size and stationary in a diagonal trajectory, similar to that of Orion's belt. They were much brighter than the other stars, strongly different in colour and unaccompanied by sound. We watched as the stationary lights began to move slowly towards each other before forming a triangular pattern, at first appearing as if they were going to collide. They then began to disappear one by one gradually, not across the sky but into the atmosphere/space. The third one lingered slightly longer than the others before also disappearing. We continued to check the sky for the next hour or so at regular intervals but the lights did not re-appear.
The beeping you can hear on the video is from my sister's camera phone; she was trying to use it to take a photograph of the lights but it kept dying due to a low battery. I rarely use the video on my phone and tried to capture the lights several times unsuccessfully before working out how to use the video function. This is the result of the final attempt, at the point in which the lights looked like they were about to collide before disappearing. As I failed to fully rotate the camera lens outward, the view is partially obscured by the handset of the phone. The object on the left is the window into my sister's kitchen.