Name movies where you felt an actor didn't belong/fit the role

[mr x]

Sinatra in the pride and the passion
Paul newman in the outrage

 

[IllustratorMike]

So Hal is more stiff upper lip, serious fighter pilot right?

Although that film had other issues as to why it bombed, that wasn't any Hal Jordan I remember reading; that was pretty much Ryan Reynolds playing himself.

 

[Luke Cage]

Cuba Gooding Jr. as Nicky Barnes - American Gangster

And OJ

 

[Kunty McPhuck]

Tom Hiddleston in Kong Skull Island

I'd say it was more of a role as an audition to show he could play a tough guy, to keep his name in the running for Bond.