After toiling away on less than memorable passion projects for much of the 1980s, Francis Ford Coppola was primed to reclaim his maverick status with 1992's adaptation of Bram Stoker's Dracula. For the most part, that's exactly what Coppola did. His hyper-faithful retelling of the Stoker's vampire classic is regarded by many to be a Gothic feast with style and substance to burn.
Gary Oldman's simmering portrayal of the titular, undead baddie has a lot to do with the film's stature. That performance is considered by many to be the fullest realization of the Count ever captured on film, and it remains a high point in a career full of them. Unfortunately, Bram Stoker's Dracula has also become a bit infamous over the years due to the performance of Oldman's costar, Keanu Reeves.
Reeves was hardly a traditional choice to play the very British character Jonathan Harker, but studio heads wanted a recognizable American actor in the integral role, so Reeves got the part. He was tasked by Coppola with dropping his signature SoCal speak in favor of affecting a British accent for his performance, and, well, the rest is sort of history. Though Coppola still praises the actor for his efforts on the film, Reeves' performance was just awful. Rumor has it that he was actually asked to overdub much of the performance in post-production. Even that didn't make much difference, and the performance stands as a low-point in Reeves' career.