United Kingdom, Sept. 25 -- Sienna Miller has joked she's going to send her teenage daughter Marlowe away "to a nunnery for the next four years".

The actress has revealed she regrets letting the 14 year old - who she shares with her ex-boyfriend Tom Sturridge - join her on the red carpet at the London premiere of War last week (16,09.26) because the youngster's appearance cause such a stir - and she's insisted the teenager is unlikely to be attending any more high profile events with her mother in future.

During an appearance on SiriusXM's The Julia Cunningham Show, Sienna said: "Marlowe didn't actually walk the red carpet with me. She came with her friend. My mom was also there ....

"It was five seconds at the end where she, like, cam...