Director Kat Coiro's forthcoming movie revolves around J.Lo's singer character, who discovers her fiance's infidelity moments before they are due to wed during a concert at Madison Square Garden in New York.
Determined to go through with the ceremony, Lopez's character picks a random mathematics teacher from the audience and decides to exchange vows with him instead. Owen Wilson has signed on to portray the educator.
Lopez will also produce the film, alongside her manager Benny Medina.
Ironically, J.Lo had to scrap her Madison Square Garden show on Saturday night (July 13) when a black-out hit Manhattan. The concert has been rescheduled to Monday.