Madonna has vetoed her 11-year-old daughter Lourdes' plans to star in a new movie and banned her from any showbiz work until she has finished school.

Lourdes - whose dad is fitness trainer Carlos Leon - has been approached to appear alongside Paul Bettany and Dakota Fanning in forthcoming comedy drama The Secret Life of Bees, reports America's Star magazine.

But a source tells the publication, "Madonna didn't work 'til after school and she wants it to be the same for Lourdes. She doesn't want her to enter that harsh world."

However, the insider hints the pop superstar may have trouble keeping her daughter away from the bright lights of fame: "Lourdes is pretty determined, so I predict a battle in the future."