The phrase "first night extra" most commonly refers to the 2010 romantic comedy/musical film (also titled First Night
2011 - Series 1
While there is no "First Night Extra" movie, the term is used in the filmography of specific experiences:
When we talk about "First Night" in the context of filmography, we are often referring to a specific niche of cinema that thrives on raw, immediate storytelling. The term has become synonymous with a genre that focuses on the events surrounding a wedding night or a significant "first evening" in a character's life.