Baby on board: what happens to films when actresses fall pregnant?

Actress Scarlett Johansson is reportedly pregnant and could be as much as five months along, according to gossip sites.

The 29-year old actress, who is expecting her first child with fiancé Romain Dauriac, is said to be filming her scenes as Natasha Romanoff/Black Widow in The Avengers: Age Of Ultron on a fast track while she can still fit into the tight black catsuit her character wears.

In 2011, actress Aishwarya Rai Bachchan lost her role in director Madhur Bhandarkar's Heroine after she announced she was pregnant. She was replaced by Kareena Kapoor amid much acrimony and accusations from Bhandarkar of having hidden her pregnancy from him.

Sridevi shot Judaai opposite brother-in-law Anil Kapoor in 1997 while she was three months pregnant with her eldest daughter Jahnvi. Judaai was her last film for 15 years, during which time she had second daughter Khushi with husband Boney Kapoor.

Amitabh and Jaya Bachchan's daughter Shweta made an invisible appearance in the 1975 classic Sholay - the white sari that swathed Jaya covered a baby bump with Shweta inside. Jaya was also pregnant with son Abhishek at the premiere of the movie.

Juhi Chawla was expecting son Arjun when she starred in Jhankaar Beats (2003), the musical in which she plays a housewife seven months pregnant with her second child.

Actress Halle Berry returned to play Storm in X-Men: Days Of Future Past last year, eight years after X-Men: The Last Stand. But she fell pregnant with son Maceo in the process of scheduling, so the crew had to shoot her scenes before it became apparent. Halle admitted that her role was somewhat impacted because of the pregnancy.

The script of Julia Roberts' Ocean's Twelve, which released in the year 2004, had to be reworked when the actress found out she was pregnant. A clever script twist had her character Tess impersonate the ‘real Julia Roberts' and was therefore made up to look pregnant with the help of a pillow.

In 2008, a pregnant Nicole Kidman bailed out of the then-in-process movie The Reader and was replaced by Kate Winslet. Kate was reportedly the first choice for the role when casting began but had to decline because of a scheduling conflict with Revolutionary Road. Destiny, as they say, brought the movie back to her.

Black and white classic Some Like It Hot (1959) was riddled with controversies from the very beginning. The leading cast – Marilyn Monroe and Tony Curtis – were allegedly having an affair despite being married to other people. When Marilyn fell pregnant during filming, she believed the father was Tony Curtis and not husband Arthur Miller. This story ended in a tragic miscarriage for Marilyn.

Reese Witherspoon was five months pregnant with son Deacon while filming Mira Nair's Vanity Fair (2003). The full skirts of the period costumes helped disguise her bump as did strategically placed furniture on set.