History Trivia / It1990

** A lot of Eddie's medicines actually belonged to Dennis Christopher. In fact,Tommy Lee Wallace allowed the cast to bring things from their normal lives on-set.

** In a curious inversion, most of the adult actors were the same age as their book counterparts. But the film ages the characters up by about five years, meaning only Creator/JohnRitter, Richard Masur and Tim Reid were in their forties. Michael Cole, who played Henry as an adult, was fifty - but this is justified since Henry has aged badly due to the traumas in his youth.

* PlayingAgainstType: Many of the cast members were primarily known for comedic roles (Tim Reid for ''Series/WKRPInCincinnati'', Creator/JohnRitter for ''Series/ThreesCompany'', Richard Masur for ''Series/{{One Day at a Time|1975}}'', and so on) and guest appearances on television series. Few were known for horror films. Harry Anderson (best known as the zany judge in ''Series/NightCourt''), also applies, but at least his character is mostly the comic relief.

* CreatorChosenCasting: Tommy Lee Wallace cast Creator/TimCurry as Pennywise and Creator/StephenKing approved, saying that he did a great job.

* TroubledProduction: While it was nothing too major, the It documentary on the making of this movie revealed that most of the kid cast were very misbehaving and causing issues such as throwing water balloons on cars. It got to the point that the police were called on them and one of the producer had to give the child cast a very firm/angry lecture about how they can not act wild like that on the set and also reminded the child cast that their bad behavior could affect them getting work in the future with other productions.

* TroubledProduction: While it was nothing too major, the It documentary on the making of this movie revealed that most of the kid cast were very misbehaving and causing issues such as throwing water balloons on cars. It got to the point that the police were called on them at one point and a Producer had to give them a very angry lecture about how they can not act like that on set and reminded them that their bad behavior could affect them getting work in the future with other productions.

** Much of the supporting cast (notably Creator/GarryChalk as Eddie's gym coach, Creator/VenusTerzo as Stan's wife, and the late Gabe Khouth as Victor) are played by actors from the local Vancouver acting pool, resulting in a bunch of Canadians trying their hardest to sound American to varying degrees of success.

** Much of the supporting cast is played by actors from the local Vancouver acting pool, resulting in a bunch of Canadians trying their hardest to sound American to varying degrees of success.