De Sousa said she was inspired to see the 50-year-old "Chennai Express" actor's dedication and focus towards his work.
"He's so calm and dedicated, once he is on the sets, it's just the film, everything else takes a backseat," De Sousa said in a statement.
The model had previously worked with Shah Rukh in a few ads but was nervous to shoot her first film shot with the actor.
"He just looked at me calmly as if to say, don't worry, I have all the time in the world. Fumble as many times as you want because that's the only way to learn."