As many mentioned almost everything so i will try to answer which are not listed by many…
Actor and Actress that rejected the films which became success at the box office.
1.Ajay Devgn
Sanjay leela Bansali approached him after his Iconic performance in “Hum Dil De Chuke Sanam” but he rejected due to the terms & Conditions of the director.
Ajay and sunny deol were the heroes in the Mind of rakesh roshan but due to clash of dates they step downed from this project.
First Ajay and next Aamir Rejected this film.
2. Kajol Devgn
She wanted to do the character same as hero's but the director didn't accepted it
Director approached her through a phone call but she rejected it.
She doesn't like concept of martial affair so she pinned down this project.
3.Saif Ali Khan
In Salman's role
4.Aamir khan
Aamir is the first to be approached in the role of sanjay dutt
Aamir Khan was offered the role of “Prakash” in the movie Josh though Aamir turned it down.
Vidhu Vinod Chopra fondly wanted to cast Aamir for the film as he had written the character of male lead role keeping Aamir in mind.
4.SRK
The role played by R. Madhavan of an Air force pilot was initially offered to Shahrukh Khan but Shahrukh didn’t take up the movie because he didn’t want to play a character secondary to Amir Khan.
Director went to Mannat to meet Shahrukh Khan for the movie, but Shahrukh Khan didn’t show up and the movie was eventually offered to Anil Kapoor.
The actor refused as he didn’t like the location of the shooting and at the same time and wanted to spend some time with his family.
Shahrukh Khan left the movie Robot because he wished to make some changes in the script and apparently S Shankar denied it.
5. Kangana Ranaut
She reportedly dropped this offer because of her busy shooting schedule.
Rejected As Sanjay's wife
6.Akshay Kumar
7.Varun Dhawan
8.Bobby Deol
9.Anushka Sharma
10. Madhuri Dixit
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