As previously mentioned, I love fan-casts. And that includes re-casts, too. I've got a lot of recasting ideas but thought this would be a fun one to share. A movie that has an already solid cast that works well together; The Fifth Element. I think that Fifth Element was cast pretty well, and that is the challenge of fan-casting it again. But a challenge can be good.
Korben Dallas previously portrayed by Bruce Willis
Re-cast as Tom Hardy
I think that Tom Hardy has the ability to play the grizzled vet that Korben was as well as the compassionate side of him. I haven't seen much of humor from Hardy, but for subtlety in Inception. But when thinking about it, Korben wasn't actually that funny, it was mostly his straight reaction to the things that was going on around him.
Leeloo previously portrayed by Milla Jovovich
Re-cast as Noomi Rapace
Leeloo is one of the "supreme beings" and thus has a great strength about her. But, she also possesses a kind of fragility and innocence. From what I've seen of Rapace, she could absolutely nail the part. And I think that she and Hardy could do very well onscreen together.
Jean-Baptiste Emanuel Zorg previously portrayed by Gary Oldman
Re-cast as Sam Rockwell
I think that Fifth Element is such a stylized movie, and maybe no other character/performance quite highlights this as much as Gary Oldman's Zorg. And I think that few people could replicate that. Sam Rockwell is one of the few. Even fewer people could pull off that haircut. That's my one doubt.
Ruby Rhod previously portrayed by Chris Tucker
Re-cast as Kevin Hart
I always thought Ruby was really weird. Watching it again, and yeah, he's still weird. But Chris Tucker played it very well. Somebody else who could bring the over-the-top aspect of the character and still be quirky/funny? Kevin Hart was one of the few people I thought of. I think you could change the character up slightly for Hart and it would still have a similar feel with the rest of the cast.
Father Vito Cornelius previously portrayed by Ian Holm
Re-cast as Sean Pertwee
I think I was more casting the look on this one, to be honest. The character seemed pretty standard, like we've seen him before. But I think that Pertwee could bring something more to the character and make him unique.
David previously portrayed by Charlie Creed-Miles
Re-cast as Justin Long
Sort of the same thing as above. Similar look, but Long could bring more to the role.
President Lindberg previously portrayed by Tommy Lister
Re-cast as Terry Crews
I remember President Lingberg as very monotone, and frequently in his chair. I think it would be interesting to see Crews try to be monotone instead of his Oldspice acting, if you know what I mean. Maybe he's typecast as a crazy, boisterous, bulbously muscular man (he can't change the last part) or maybe he's asked to do that. Even if he was to be like his usual role, though toned down, I think it would still rather fit the whole style of the movie.
Mangalore previously portrayed by a number of people
Re-cast as Andy Serkis
I love Andy Serkis. And whether you'd want the Mangalores to stay practical effects, or motion-capture, Andy is the man. He's just the man. His dedication to his roles is incredible, seeing behind-the-scenes of his mo-cap performances, he's just full-on in-character.
General Munro previously portrayed by Brion James
Re-cast as Kelsey Grammer
In memory, Munro is kind of a forgotten character. I remember him most for being frozen inside Korben's apartment. But again, I think that Kelsey Grammer could add more to the role without changing the feel of the movie.
The Fifth Element has a pretty large cast but I'll end it at these actors and roles here. There are some movies we don't want to see redone, and for me, The Fifth Element may be on that list. But it's that very reason why I wanted to try to re-cast it.