Amitabh Bachchan's much-awaited Paa, in which Big B plays a 13-year-old boy suffering from progeria that accelerates the ageing process, will release on Friday in 20 countries with 700 prints, including digital.

Abhishek Bachchan and Vidya Balan unveil Paa

Paa is an AB Corp Ltd. presentation in association with Reliance BIG Pictures, which will release it simultaneously in India as well as other countries such as Britain, Canada, US, UAE, Australia, South Africa and New Zealand.

Directed by R. Balakrishnan, the film will see Abhishek and Vidya Balan as Amitabh's parents. Ahead of its release, it is having extensive marketing and promotion campaigns.

Idea Cellular had tied up with Paa for Talk to Auro activity - it will allow callers to leave messages for Auro and in return receive calls from Auro on a pre-determined date. Apart from this, ringtones in Auro's voice and other value added services too will be available on Idea network.

Paa: Check out 13-year-old Amitabh Bachchan!

Also, Bajaj Allianz has tied up for an integrated TV ad on Child Plans that has been interspersed with the film's promos and is currently on air.

BIG FM is on board as the film's radio partner.