"Warning is a 90-minute 3D franchise. It is about six-seven friends who ignore a warning and get into life threatening crisis. Some survive and some don't," Sinha, who has produced the film, told IANS.
"It's a no interval film and a good e.g. would be 'Delhi Belly', which was a 90-minute film without an interval," he added.
The first part of the film is about friends stuck in the middle of an Oscean.
Gurmeet Singh has directed "Warning" and Sinha said: "He (Singh) wrapped the whole film in 42 days, that too a 3D underwater film. We shot the film in Fiji."
The second part of "Warning" will be released a year after the first one.