NEW YORK:

Singer-actress Jennifer Lopez is not giving any reasons for leaving the cast of the movie Dallas but insiders are speculating. According to pagesix.com, insiders say there are two big reasons — a bad script and an unfit John Travolta who was supposed play JR Ewing opposite Lopez’s Sue Ellen. A source said, “The script sucks, and John Travolta? If it had been a man’s man like Ed Harris or Tommy Lee Jones... but you don’t just go from doing Hairspray to Dallas.”