Ultimate Bollywood puzzle - Second Round

Another one from the basket -

Movie A almost featured popular Bollywood star B but the role of the phenomenally popular character C went to D instead, reviving his career. D's close relatives E and F played mother and son in a movieG. G also featured H whose son went on to marry D's sister. H's son also starred with D in a hit movie I, which featured an iconic song Jsung by ghazal maestro K. This movie was directed by a famous director L whose relative M is known for the rather liberal use of a certain set of facial muscles. M's cousin N shot into notoriety by featuring on a controversial magazine cover. N won the Filmfare Best Female Debut award for her role in the movie O even though technically her first movie was P, both directed by L. O also featured talented actor Q in a prominent role. Q, who has won the Filmfare Best Comedian award multiple times, received critical acclaim for his convincing portrayal of an old man in movie R, also directed by L. He was also part of one of the biggest Bollywood hits of all time S, directed by T and featuring U as one of the leads. U's relative V, rumoured to be headed for the altar with T, was the lead in a movie opposite talented and popular superstar W, where W sang a chartbuster X. W also acted in a very long movie Y, opposite Z. To close the loop, Z was the female lead in A.

PS: Don't read the comments section if you want to try solving it first.