Sweeney Todd, like all musicals, was destined for failure.
Anyway, as for these new Watchmen shots, Ozy doesn't look as bad as everyone's saying. Above all, he's a gymnast, so having a smaller frame is key for his agility. As for his looking young, Watchmen takes place over a really long timeline, so the actors are all young, and will be aged throughout the film through either prosthetics or digital enhancements.
The costumes look a little Schumacher's Batman, especially when Gibbons specifically went after a more cloth-like look for the original garbs, but if Snyder needs rubber to make it work, so be it.
Also, Archie FTW.