They became more closer when the scene TITLLE CALLED  Room Mate 

[Sungmin falls into depression after his girlfriend Hye Kyo is killed in a car accident. His room mates try to cheer him up, but nothing is working. A new room mate arrives, introducing himself as Kyuhyun. Strangely, Sungmin begins to notice unique traits in Kyuhyun that Hye Kyo used to have, like not adding the dried vegetables to ramyun, listening to stereo players, and the same characters of their given names. Sungmin and Kyuhyun grow closer and feel sparks. Shindong, however, grows increasingly suspicious of Kyuhyun...]

they spent more than a day to make it and a lot of other Movie  too

Super Junior [Roommate] 1/2 - YouTube

Eng subs

Super Junior Mini Drama Part 1 Eng Subs - YouTube