Mimtaz
4. Jagga Jasoos
The Anurag Basu directorial, starring Ranbir Kapoor and Katrina Kaif in the lead, was apparently in the making for 5 years. Jagga Jasoos, which went on floors in 2013, was finally released in 2017. During those 5 years, the movie was reshot a couple of times and Ranbir-Katrina had also broken up.
5. Hum Tumhare Hain Sanam
Shah Rukh Khan, Madhuri Dixit & Salman Khan-starrer Hum Tumhare Hain Sanam apparently took 6 years to release as it was stuck in production hassles.
