WATCH: First trailer for live action 'Little Mermaid' remake released

The film stars Downtown Abbey's Poppy Drayton

The first trailer for the live-action The Little Mermaid movie is here.

Based on Hans Christian Anderson's fairy tale rather than the Disney movie, this new take follows a young girl (Loreto Peralta) who discovers a beautiful, enchanting woman who she believes is the real "Little Mermaid."

The girl's older brother Cam (William Moseley) is a reporter, and travels with his sister to a small town in Mississippi to find the maybe-mermaid in question, who is played by Downton Abbey's Poppy Drayton.