SRK being an overseas darling has a lot to do with YRF's penetration in overseas markets. YRF and Dharma usually shot films abroad, had NRI characters, had concerts and live shows or marketing and interviews among overseas audiences too.
Something that other PHs lack and other stars did less.
SRK has also done more NRI roles compared to others. So naturally he was more relatable and popular to overseas audience. He rarely did highly rooted roles like say, Dabanng which is set in a small UP town and is totally desi to the hilt. He cultivated a highly urban image which clicked with overseas audience. He also never got into local issues or politics like say, Aamir got into with RDB.
His films were about love stories and convincing or taking family and friends along, which is happy go lucky and relatable theme for urban and overseas audience too.
The kind of access that YRF, Dharma gave him and his films is unthinkable for other actors. It is his talent and charisma also that he benefited them or fitted universe of their films perfectly.
Your example of Alia is perfect in this context. The backing and support, the access makes world of difference for the actor.
SRK got honoured by foreign govts same way as Yash Chopra did. He became a cultural ambassador of sorts through YRF which already had huge reach abroad and Chopras are also politically well connected.
Otherwise on their own alone, no artist gets so huge or larger than life.
Others like Aamir, Akshay, Salman, Ajay, Sunny, Hrithik, Sunil, Sanjay etc never got that kind of support from the biggest PH of India.
There is no PH in India as huge and with as much widespread reach as Chopras. Chopras ruled T.V. space also through BR Chopra. Yash and BR Chopra were like messiahs of entertainment business. Of course being blue eyed boy of someone as powerful as Chopras helps a lot.
Vivek Oberoi got destroyed with fallout with Adi Chopra. We all know what power Chopras hold in making or breaking careers of stars.
Why only SRK? I think Kajol, Rani and Preity also owe their stardom to YRF, Dharma. Rani especially was doing B grade films like Raja ki aayegi baraat and Mehendi before she caught fancy of K Jo and clicked with KKHH and also got success with Aamir in Ghulam. If these women are darlings of overseas lot and masses, that too is due to YRF and Dharma making them in house favs.
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