Film crews descended on a Kent beach this week to capture the coast as part of a backdrop to a fresh production. Seen in Margate on the steps toward the sea in The Parade on Monday, pictures show the team filming in front of the water. It is understood for one day they were shooting part of an advert focused on climate change awareness set to launch this summer, and are currently finishing the piece in and around London. It is not the first time in recent months crews have used Kent as the backdrop for filming. Last month, a production team was spotted shooting a “science fiction thing” in Mai…