For authenticity, Ashutosh Gowariker shot a scene at Launch Pad 39A, at the Kennedy Space Center in Florida, USA.
This is the first Indian film to be shot inside the NASA research center.
The book "Bapu Kuti" written by Rajni Bakshi which was a source of research in the making of Swades, is acknowledged in the film and is shown in the bookstore scene when Shahrukh Khan is at the billing counter.
The song "Yun Hi Chala Chal" was re-used in the 2018 Hollywood action-comedy movie Deadpool 2.
When Mohan and the villagers get together in the school for a celebration, we see a blackboard in the background with a design drawn on it in chalk.
That design is the symbol of Saraswati (Goddess of Education & Knowledge) and it is also incorporated in the logo of Ashutosh Gowariker Productions.