Pregnant Penelope Cruz's younger sis plays body double

London, Oct 11(ANI): Penelope Cruz's lookalike younger sister Monika will be doing some of her sister's acts in the fourth 'Pirates of the Caribbean' movie - 'On Stranger Tides'.

Monika has agreed to stand in for Cruz as Blackbeard's daughter Angelica as Penelope is five months pregnant with her first child with hubby Javier Bardem, reports the Sun.

Penelope will do close-ups above her bump and Monica will do the distance shots.

Actress Monica, at 33 three years younger than her sister, is a star in her native Spain but has found it hard to make her mark in Hollywood as her English is not as fluent as her sister's. (ANI)